| Current Path : /home/usr.opt/mysql57/mysql-test/suite/engines/iuds/r/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //home/usr.opt/mysql57/mysql-test/suite/engines/iuds/r/update_delete_number.result |
DROP TABLE IF EXISTS t1,t2;
CREATE TABLE t1(c1 INT UNSIGNED NOT NULL, c2 INT SIGNED NULL, c3 INT, INDEX idx2(c2));
INSERT INTO t1 VALUES(0,-128,0),(1,1,1),(2,2,2),(0,\N,3),(101,-101,4),(102,-102,5),(103,-103,6),(104,-104,7),(105,-105,8);
Warnings:
Warning 1287 '\N' is deprecated and will be removed in a future release. Please use NULL instead
SELECT * FROM t1;
c1 c2 c3
0 -128 0
0 NULL 3
1 1 1
101 -101 4
102 -102 5
103 -103 6
104 -104 7
105 -105 8
2 2 2
UPDATE t1 SET c1=110 WHERE c2 >-128 ORDER BY c2 LIMIT 2;
SELECT * FROM t1 WHERE c1=110;
c1 c2 c3
110 -104 7
110 -105 8
UPDATE t1 SET c1=c1+1,c2=NULL WHERE c1=101;
SELECT * FROM t1 WHERE c1=102 AND c2 IS NULL;
c1 c2 c3
102 NULL 4
UPDATE t1 SET c1=120 WHERE c2 IS NULL;
SELECT c1,c2 FROM t1 WHERE c1=120;
c1 c2
120 NULL
120 NULL
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=-120 WHERE c2=-102;
Warnings:
Warning 1264 Out of range value for column 'c1' at row 1
SELECT c1,c2 FROM t1 WHERE c2=-102;
c1 c2
0 -102
UPDATE t1 SET c1=0,c2=-2147483648 WHERE c1=103 AND c2=-103;
SELECT * FROM t1 WHERE c1=0 AND c2=-2147483648;
c1 c2 c3
0 -2147483648 6
UPDATE t1 SET c1=4294967295,c2=2147483647 WHERE c1=104 OR c2=105;
SELECT * FROM t1 WHERE c1=4294967295 AND c2=2147483647;
c1 c2 c3
UPDATE t1 SET c2=0 WHERE c1 IN (1,2);
SELECT * FROM t1 WHERE c2=0;
c1 c2 c3
1 0 1
2 0 2
INSERT INTO t1 VALUES(106,-106,9),(107,-107,10),(108,-108,11),(109,-109,12),(255,127,13);
UPDATE t1 SET c1=4294967296,c2=2147483648 WHERE c2 BETWEEN -108 AND -106;
Warnings:
Warning 1264 Out of range value for column 'c1' at row 1
Warning 1264 Out of range value for column 'c2' at row 1
Warning 1264 Out of range value for column 'c1' at row 2
Warning 1264 Out of range value for column 'c2' at row 2
Warning 1264 Out of range value for column 'c1' at row 3
Warning 1264 Out of range value for column 'c2' at row 3
SELECT COUNT(*) FROM t1 WHERE c1=4294967296 AND c2=2147483648 /* no rows */;
COUNT(*)
0
SELECT * FROM t1 WHERE c1=4294967295 AND c2=2147483647;
c1 c2 c3
4294967295 2147483647 10
4294967295 2147483647 11
4294967295 2147483647 9
UPDATE t1 SET c2=-2147483649 WHERE c1=109 ORDER BY c1;
Warnings:
Warning 1264 Out of range value for column 'c2' at row 13
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
SELECT c1,c2 FROM t1 WHERE c1=109;
c1 c2
109 -2147483648
INSERT INTO t1 VALUES(110,-110,14),(111,-111,15);
SET SQL_MODE=STRICT_ALL_TABLES;
UPDATE t1 SET c1=NULL WHERE c2=-110;
ERROR 23000: Column 'c1' cannot be null
UPDATE IGNORE t1 SET c1=NULL WHERE c2=-110 /* updates to default value 0 */;
Warnings:
Warning 1048 Column 'c1' cannot be null
SELECT c1,c2 FROM t1 WHERE c2=-110;
c1 c2
0 -110
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=NULL WHERE c2=-111 /* updates to default value 0 */;
Warnings:
Warning 1048 Column 'c1' cannot be null
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
SELECT * FROM t1 WHERE c1=0;
c1 c2 c3
0 -102 5
0 -110 14
0 -111 15
0 -128 0
0 -2147483648 6
SELECT * FROM t1 WHERE c2>=-101 AND c1<=101 ORDER BY c2;
c1 c2 c3
1 0 1
2 0 2
UPDATE t1 SET c1=c1+1,c2=c2+1 WHERE c2>=-101 AND c1<=101 ORDER BY c2 LIMIT 2;
SELECT * FROM t1;
c1 c2 c3
0 -102 5
0 -110 14
0 -111 15
0 -128 0
0 -2147483648 6
109 -2147483648 12
110 -104 7
110 -105 8
120 NULL 3
120 NULL 4
2 1 1
255 127 13
3 1 2
4294967295 2147483647 10
4294967295 2147483647 11
4294967295 2147483647 9
CREATE TABLE t2(c1 INT SIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, c2 INT UNSIGNED NULL, c3 INT);
INSERT INTO t2(c1) VALUES(1),(2),(3),(4),(5);
UPDATE t2 SET c1=1 WHERE c1=3;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
UPDATE IGNORE t2 SET c1=1 WHERE c1>=3;
Warnings:
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
SELECT c1 FROM t2;
c1
1
2
3
4
5
TRUNCATE TABLE t1;
ALTER TABLE t1 CHANGE c1 c1 INT UNSIGNED NOT NULL AUTO_INCREMENT, ADD PRIMARY KEY(c1);
INSERT INTO t1 VALUES(1,2,3),(4,5,6),(7,8,9),(10,11,12);
TRUNCATE TABLE t2;
INSERT INTO t2 VALUES(1,2,3),(4,5,6),(7,8,9),(10,11,12);
INSERT INTO t1(c2,c3) VALUES(13,14);
SELECT c1 FROM t1 WHERE c2=13;
c1
11
INSERT INTO t2(c2,c3) VALUES(13,14);
SELECT c1 FROM t2 WHERE c2=13;
c1
11
UPDATE t1 SET c1=4294967295,c2=2147483647 WHERE c2=13;
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
4294967295 2147483647
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t2 SET c1=0,c2=-2147483648 WHERE c2=2;
Warnings:
Warning 1264 Out of range value for column 'c2' at row 1
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
4294967295 2147483647
UPDATE t2 SET c2=0 WHERE c2=5;
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
4294967295 2147483647
UPDATE t2 SET c1=2147483647,c2=4294967295 WHERE c2=13;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
2147483647 4294967295
UPDATE t2 SET c1=-2147483648,c2=0 WHERE c2=2;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
2147483647 4294967295
UPDATE t2 SET c1=0,c2=0 WHERE c2=5;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
2147483647 4294967295
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
CREATE TABLE mt1 (c1 INT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
CREATE TABLE mt2 (c1 INT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
CREATE TABLE mt3 (c1 INT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
INSERT INTO mt1 VALUES(1,1),(2,2),(3,3),(4,4),(5,5);
INSERT INTO mt2 VALUES(11,1),(12,1),(13,1),(14,2),(15,6);
INSERT INTO mt3 VALUES(21,11),(22,11),(23,13),(24,14),(25,15);
UPDATE IGNORE mt1, mt2 ,mt3 SET mt1.c2 = 30, mt2.c2 = 40, mt3.c2=50 WHERE mt1.c1=mt2.c2 AND mt2.c1=mt3.c2;
SELECT * FROM mt1;
c1 c2
1 30
2 30
3 3
4 4
5 5
SELECT * FROM mt2;
c1 c2
11 40
12 1
13 40
14 40
15 6
SELECT * FROM mt3;
c1 c2
21 50
22 50
23 50
24 50
25 15
DROP TABLE mt1,mt2,mt3;
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
ALTER TABLE t2 CHANGE c2 c2 INT UNSIGNED NULL, ADD KEY(c2);
INSERT INTO t1 VALUES(1,-1,1),(2,-2,2),(3,-3,3),(4,-4,4),(5,-5,5),(6,-6,6),(7,-7,7),(8,-8,8),(9,-9,9),(10,-10,10),(11,NULL,11);
INSERT INTO t2 VALUES(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(-7,7,7),(-8,8,8),(-9,9,9),(10,10,10),(-11,NULL,11),(-12,12,12);
UPDATE t1,t2 SET t1.c1=50,t1.c2=50,t2.c1=50,t2.c2=50 WHERE t2.c1=t1.c1;
SELECT * FROM t1,t2 WHERE t1.c1=50 AND t1.c2=50 AND t2.c1=50 AND t2.c2=50;
c1 c2 c3 c1 c2 c3
50 50 10 50 50 10
SELECT * FROM t1,t2 WHERE t2.c1=t1.c1;
c1 c2 c3 c1 c2 c3
50 50 10 50 50 10
ALTER TABLE t2 CHANGE c1 c1 INT SIGNED NOT NULL, DROP PRIMARY KEY;
ALTER TABLE t2 CHANGE c1 c1 INT SIGNED NOT NULL, ADD KEY(c1);
INSERT INTO t2 VALUES(-2147483648,0,13),(2147483647,4294967295,14),(0,2147483648,15),(2147483647,2147483647,16);
UPDATE t2 SET c1=-2147483648 WHERE c2 <> 0 ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 <> 0 ORDER BY c2;
c1 c2 c3
-2147483648 1 1
-2147483648 2 2
-3 3 3
-4 4 4
-5 5 5
-6 6 6
-7 7 7
-8 8 8
-9 9 9
-12 12 12
50 50 10
2147483647 2147483647 16
0 2147483648 15
2147483647 4294967295 14
UPDATE t2 SET c1=-2147483648 WHERE c2 >= 0 ORDER BY c2 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 >= 0 ORDER BY c2 DESC;
c1 c2 c3
-2147483648 4294967295 14
-2147483648 2147483648 15
2147483647 2147483647 16
50 50 10
-12 12 12
-9 9 9
-8 8 8
-7 7 7
-6 6 6
-5 5 5
-4 4 4
-3 3 3
-2147483648 2 2
-2147483648 1 1
-2147483648 0 13
UPDATE t2 SET c1=-2147483648 WHERE c2 <= 3 ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 <= 3 ORDER BY c2;
c1 c2 c3
-2147483648 0 13
-2147483648 1 1
-2147483648 2 2
-3 3 3
UPDATE t2 SET c1=-2147483648 WHERE c2 <=> 4 ORDER BY c2 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 <=> 4 ORDER BY c2;
c1 c2 c3
-2147483648 4 4
UPDATE t2 SET c1=-2147483648 WHERE c2 BETWEEN 4 AND 7 ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 BETWEEN 4 AND 7 ORDER BY c2;
c1 c2 c3
-2147483648 4 4
-2147483648 5 5
-6 6 6
-7 7 7
UPDATE t2 SET c1=-2147483648 WHERE c2 IN(8,9) ORDER BY c2 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 IN(8,9) ORDER BY c2 DESC;
c1 c2 c3
-2147483648 9 9
-2147483648 8 8
UPDATE t2 SET c1=-2147483648 WHERE c2 IS NULL ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2;
c1 c2 c3
-2147483648 NULL 11
UPDATE t2 SET c1=-2147483648 WHERE c2>= 6 AND c2 < 9 ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2>= 6 AND c2 < 9 ORDER BY c2;
c1 c2 c3
-2147483648 6 6
-2147483648 7 7
-2147483648 8 8
UPDATE t2 SET c1=-2147483648 WHERE c1=-12 OR c2=1;
SELECT * FROM t2 WHERE c1=-2147483648;
c1 c2 c3
-2147483648 0 13
-2147483648 1 1
-2147483648 12 12
-2147483648 2 2
-2147483648 2147483648 15
-2147483648 4 4
-2147483648 4294967295 14
-2147483648 5 5
-2147483648 6 6
-2147483648 7 7
-2147483648 8 8
-2147483648 9 9
-2147483648 NULL 11
SELECT * FROM t2;
c1 c2 c3
-2147483648 0 13
-2147483648 1 1
-2147483648 12 12
-2147483648 2 2
-2147483648 2147483648 15
-2147483648 4 4
-2147483648 4294967295 14
-2147483648 5 5
-2147483648 6 6
-2147483648 7 7
-2147483648 8 8
-2147483648 9 9
-2147483648 NULL 11
-3 3 3
2147483647 2147483647 16
50 50 10
SELECT c1 FROM t2;
c1
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-3
2147483647
50
SELECT c1 FROM t2 ORDER BY c1 DESC;
c1
2147483647
50
-3
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
-2147483648
SELECT * FROM t2 WHERE c1=-2147483648;
c1 c2 c3
-2147483648 0 13
-2147483648 1 1
-2147483648 12 12
-2147483648 2 2
-2147483648 2147483648 15
-2147483648 4 4
-2147483648 4294967295 14
-2147483648 5 5
-2147483648 6 6
-2147483648 7 7
-2147483648 8 8
-2147483648 9 9
-2147483648 NULL 11
SELECT * FROM t2 WHERE c1 <> -2147483648 ORDER BY c1,c2;
c1 c2 c3
-3 3 3
50 50 10
2147483647 2147483647 16
SELECT * FROM t2 WHERE c1 <> -2147483648 ORDER BY c1,c2 DESC LIMIT 2;
c1 c2 c3
-3 3 3
50 50 10
SELECT * FROM t2 WHERE c1 > -2147483648 ORDER BY c1,c2 DESC;
c1 c2 c3
-3 3 3
50 50 10
2147483647 2147483647 16
SELECT * FROM t2 WHERE c1 >= -2147483648 ORDER BY c1,c2 LIMIT 2;
c1 c2 c3
-2147483648 NULL 11
-2147483648 0 13
SELECT * FROM t2 WHERE c1 < -2147483648 ORDER BY c1,c2;
c1 c2 c3
SELECT * FROM t2 WHERE c1 <= -2147483648 ORDER BY c1,c2 DESC LIMIT 2;
c1 c2 c3
-2147483648 4294967295 14
-2147483648 2147483648 15
SELECT * FROM t2 WHERE c1 <=> -2147483648 ORDER BY c1,c2 DESC;
c1 c2 c3
-2147483648 4294967295 14
-2147483648 2147483648 15
-2147483648 12 12
-2147483648 9 9
-2147483648 8 8
-2147483648 7 7
-2147483648 6 6
-2147483648 5 5
-2147483648 4 4
-2147483648 2 2
-2147483648 1 1
-2147483648 0 13
-2147483648 NULL 11
SELECT * FROM t2 WHERE c1 <=> -2147483648 ORDER BY c1,c2 LIMIT 2;
c1 c2 c3
-2147483648 NULL 11
-2147483648 0 13
SELECT * FROM t2 WHERE c1 BETWEEN -2147483648 AND 2147483647 ORDER BY c1,c2;
c1 c2 c3
-2147483648 NULL 11
-2147483648 0 13
-2147483648 1 1
-2147483648 2 2
-2147483648 4 4
-2147483648 5 5
-2147483648 6 6
-2147483648 7 7
-2147483648 8 8
-2147483648 9 9
-2147483648 12 12
-2147483648 2147483648 15
-2147483648 4294967295 14
-3 3 3
50 50 10
2147483647 2147483647 16
SELECT * FROM t2 WHERE c1 BETWEEN -2147483648 AND 2147483647 ORDER BY c1,c2 DESC LIMIT 2;
c1 c2 c3
-2147483648 4294967295 14
-2147483648 2147483648 15
SELECT * FROM t2 WHERE c1 IN(-2147483648,2147483647) ORDER BY c1,c2 DESC;
c1 c2 c3
-2147483648 4294967295 14
-2147483648 2147483648 15
-2147483648 12 12
-2147483648 9 9
-2147483648 8 8
-2147483648 7 7
-2147483648 6 6
-2147483648 5 5
-2147483648 4 4
-2147483648 2 2
-2147483648 1 1
-2147483648 0 13
-2147483648 NULL 11
2147483647 2147483647 16
SELECT * FROM t2 WHERE c1 IN(-2147483648,2147483647) ORDER BY c1,c2 LIMIT 2;
c1 c2 c3
-2147483648 NULL 11
-2147483648 0 13
SELECT * FROM t2 WHERE c1>=-2147483648 AND c1 <= 2147483647 ORDER BY c1,c2 DESC;
c1 c2 c3
-2147483648 4294967295 14
-2147483648 2147483648 15
-2147483648 12 12
-2147483648 9 9
-2147483648 8 8
-2147483648 7 7
-2147483648 6 6
-2147483648 5 5
-2147483648 4 4
-2147483648 2 2
-2147483648 1 1
-2147483648 0 13
-2147483648 NULL 11
-3 3 3
50 50 10
2147483647 2147483647 16
SELECT * FROM t2 WHERE c1>=-2147483648 AND c1 <= 2147483647 ORDER BY c1,c2 LIMIT 2;
c1 c2 c3
-2147483648 NULL 11
-2147483648 0 13
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1;
c1 c2 c3
-2147483648 NULL 11
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-2147483648 NULL 11
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c2,c1 DESC;
c1 c2 c3
-2147483648 0 13
-2147483648 1 1
-2147483648 2 2
-3 3 3
-2147483648 4 4
-2147483648 5 5
-2147483648 6 6
-2147483648 7 7
-2147483648 8 8
-2147483648 9 9
-2147483648 12 12
50 50 10
2147483647 2147483647 16
-2147483648 2147483648 15
-2147483648 4294967295 14
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-2147483648 0 13
-2147483648 1 1
CREATE TABLE mt1 (a int not null primary key, b int not null, key (b));
CREATE TABLE mt2 (a int not null primary key, b int not null, key (b));
INSERT INTO mt1 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
INSERT INTO mt2 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
update mt1,mt2 set mt1.a=mt1.a+100;
select * from mt1;
a b
101 1
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
update mt1,mt2 set mt1.a=mt1.a+100 where mt1.a=101;
select * from mt1;
a b
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
201 1
update mt1,mt2 set mt1.b=mt1.b+10 where mt1.b=2;
select * from mt1;
a b
102 12
103 3
104 4
105 5
106 6
107 7
108 8
109 9
201 1
update mt1 straight_join mt2 set mt1.b=mt1.b+2,mt2.b=mt1.b+10 where mt1.b between 3 and 5 and mt2.a=mt1.a-100;
select * from mt1;
a b
102 12
103 5
104 6
105 7
106 6
107 7
108 8
109 9
201 1
select * from mt2;
a b
1 1
2 2
3 13
4 14
5 15
6 6
7 7
8 8
9 9
update mt1,mt2 set mt1.b=mt2.b, mt1.a=mt2.a where mt1.a=mt2.a and not exists (select * from mt2 where mt2.a > 10);
drop table mt1,mt2;
TRUNCATE TABLE t2;
INSERT INTO t2 VALUES(-128,0,1),(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(0,0,7),(1,1,8),(127,255,9);
SELECT * FROM t2 WHERE c1=127 OR c2=3;
c1 c2 c3
-3 3 3
127 255 9
DELETE FROM t2 WHERE c1=127 OR c2=3;
SELECT * FROM t2 WHERE c1=127 OR c2=3;
c1 c2 c3
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1;
c1 c2 c3
-128 0 1
-6 6 6
-5 5 5
-4 4 4
-2 2 2
-1 1 1
0 0 7
1 1 8
DELETE FROM t2 WHERE c1 >= -128 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-2 2 2
-1 1 1
0 0 7
1 1 8
SELECT * FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC;
c1 c2 c3
1 1 8
0 0 7
-1 1 1
-2 2 2
-4 4 4
-5 5 5
DELETE FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC;
c1 c2 c3
-1 1 1
-2 2 2
-4 4 4
-5 5 5
SELECT * FROM t2 WHERE c1 < 0 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-2 2 2
-1 1 1
DELETE FROM t2 WHERE c1 < 0 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 < 0 ORDER BY c1;
c1 c2 c3
-2 2 2
-1 1 1
SELECT * FROM t2 WHERE c1 > -3 ORDER BY c1 DESC;
c1 c2 c3
-1 1 1
-2 2 2
DELETE FROM t2 WHERE c1 > -3 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 > -3 ORDER BY c1 DESC;
c1 c2 c3
INSERT INTO t2 VALUES(-128,0,1),(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(0,0,7),(1,1,8),(2,NULL,9),(3,NULL,10),(127,255,11);
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1;
c1 c2 c3
-128 0 1
-6 6 6
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 0 7
1 1 8
2 NULL 9
3 NULL 10
127 255 11
DELETE FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 0 7
1 1 8
2 NULL 9
3 NULL 10
127 255 11
SELECT * FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
c1 c2 c3
0 0 7
-2 2 2
DELETE FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
SELECT * FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1;
c1 c2 c3
-1 1 1
1 1 8
DELETE FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-3 3 3
127 255 11
DELETE FROM t2 WHERE c2 IS NOT NULL ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c1;
c1 c2 c3
-3 3 3
127 255 11
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC;
c1 c2 c3
3 NULL 10
2 NULL 9
DELETE FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC;
c1 c2 c3
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
INSERT INTO t1 VALUES(254,127,1),(0,-128,2),(1,127,3),(2,-128,4),(3,NULL,5);
INSERT INTO t2 VALUES(127,255,1),(127,1,2),(-128,0,3),(-128,2,4),(-1,NULL,5);
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
c1 c2 c3 c1 c2 c3
1 127 3 127 1 2
1 127 3 127 255 1
2 -128 4 -128 0 3
2 -128 4 -128 2 4
254 127 1 127 1 2
254 127 1 127 255 1
255 -128 2 -128 0 3
255 -128 2 -128 2 4
255 -128 2 127 255 1
3 NULL 5 -1 NULL 5
DELETE t1,t2 FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
c1 c2 c3 c1 c2 c3
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
INSERT INTO t1 VALUES(254,127,1),(0,-128,2),(1,127,3),(2,-128,4),(3,NULL,5);
INSERT INTO t2 VALUES(127,255,1),(127,1,2),(-128,0,3),(-128,2,4),(-1,NULL,5);
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2;
c1 c2 c3 c1 c2 c3
1 127 3 127 1 2
1 127 3 127 255 1
2 -128 4 -128 0 3
2 -128 4 -128 2 4
254 127 1 127 1 2
254 127 1 127 255 1
255 -128 2 -128 0 3
255 -128 2 -128 2 4
DELETE FROM a1, a2 USING t1 AS a1 INNER JOIN t2 AS a2 WHERE a2.c1=a1.c2;
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2;
c1 c2 c3 c1 c2 c3
DELETE FROM t1,t2 using t1,t2 where t1.c1=(select c1 from t1);
ERROR HY000: You can't specify target table 't1' for update in FROM clause
CREATE TABLE t3(c1 INT UNSIGNED NOT NULL PRIMARY KEY, c2 INT SIGNED NULL, c3 INT);
CREATE TABLE t4(c1 INT UNSIGNED, c2 INT);
INSERT INTO t3 VALUES(200,126,1),(250,-127,2);
INSERT INTO t4 VALUES(200,1),(150,3);
SELECT * FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
c1 c2 c3 c1 c2
200 126 1 200 1
DELETE t3.*,t4.* FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
SELECT * FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
c1 c2 c3 c1 c2
DROP TABLE t1,t2,t3,t4;
create table mt1 (a int not null, b int not null, key (a));
insert into mt1 values (1,1),(1,2),(1,3),(3,1),(3,2),(3,3),(3,1),(3,2),(3,3),(2,1),(2,2),(2,3);
SET @tmp=0;
update mt1 set b=(@tmp:=@tmp+1) order by a;
update mt1 set b=99 where a=1 order by b asc limit 1;
select * from mt1 order by a,b;
a b
1 2
1 3
1 99
2 4
2 5
2 6
3 7
3 8
3 9
3 10
3 11
3 12
update mt1 set b=100 where a=1 order by b desc limit 2;
update mt1 set a=a+10+b where a=1 order by b;
select * from mt1 order by a,b;
a b
2 4
2 5
2 6
3 7
3 8
3 9
3 10
3 11
3 12
13 2
111 100
111 100
create table mt2 (a int not null, b int not null);
insert into mt2 values (1,1),(1,2),(1,3);
update mt1 set b=(select distinct 1 from (select * from mt2) a);
drop table mt1,mt2;
create table mt1 (f1 int);
create table mt2 (f2 int);
insert into mt1 values(1),(2);
insert into mt2 values(1),(1);
update mt1,mt2 set f1=3,f2=3 where f1=f2 and f1=1;
affected rows: 3
info: Rows matched: 3 Changed: 3 Warnings: 0
update mt2 set f2=1;
update mt1 set f1=1 where f1=3;
update mt2,mt1 set f1=3,f2=3 where f1=f2 and f1=1;
affected rows: 3
info: Rows matched: 3 Changed: 3 Warnings: 0
SELECT * FROM mt1;
f1
2
3
SELECT * FROM mt2;
f2
3
3
drop table mt1,mt2;
create table mt1(f1 int, f2 int);
create table mt2(f3 int, f4 int);
create index idx on mt2(f3);
insert into mt1 values(1,0),(2,0);
insert into mt2 values(1,1),(2,2);
UPDATE mt1 SET mt1.f2=(SELECT MAX(mt2.f4) FROM mt2 WHERE mt2.f3=mt1.f1);
select * from mt1;
f1 f2
1 1
2 2
drop table mt1,mt2;
create table mt1 (a int, b char(255), key(a, b(20)));
insert into mt1 values (0, '1');
update mt1 set b = b + 1 where a = 0;
select * from mt1;
a b
0 2
drop table mt1;
create table mt1(f1 int, f2 int);
create table mt2(f3 int, f4 int);
create index idx on mt2(f3);
insert into mt1 values(1,0),(2,0);
insert into mt2 values(1,1),(2,2);
UPDATE mt1 SET mt1.f2=(SELECT MAX(mt2.f4) FROM mt2 WHERE mt2.f3=mt1.f1);
select * from mt1;
f1 f2
1 1
2 2
drop table mt1,mt2;
create table mt1 (id int not null auto_increment primary key, id_str varchar(32));
insert into mt1 (id_str) values ("test");
update mt1 set id_str = concat(id_str, id) where id = last_insert_id();
select * from mt1;
id id_str
1 test1
drop table mt1;
create table mt1 (n int(10) not null primary key, d int(10));
create table mt2 (n int(10) not null primary key, d int(10));
insert into mt1 values(1,1), (3,3);
insert into mt2 values(1,10),(2,20);
UPDATE mt2 left outer join mt1 on mt1.n=mt2.n SET mt1.d=mt2.d;
select * from mt1;
n d
1 10
3 3
select * from mt2;
n d
1 10
2 20
drop table mt1,mt2;
create table mt1 (n int(10), d int(10));
create table mt2 (n int(10), d int(10));
insert into mt1 values(1,1),(1,2);
insert into mt2 values(1,10),(2,20);
UPDATE mt1 straight_join mt2 SET mt1.d=mt2.d,mt2.d=30 WHERE mt1.n=mt2.n;
select * from mt1;
n d
1 10
1 10
select * from mt2;
n d
1 30
2 20
drop table mt1,mt2;
create table mt1 (n int(10), d int(10));
create table mt2 (n int(10), d int(10));
insert into mt1 values(1,1),(3,2);
insert into mt2 values(1,10),(1,20);
UPDATE mt1 straight_join mt2 SET mt1.d=mt2.d,mt2.d=30 WHERE mt1.n=mt2.n;
select * from mt1;
n d
1 10
3 2
select * from mt2;
n d
1 30
1 30
UPDATE mt1 a straight_join mt2 b SET a.d=b.d,b.d=30 WHERE a.n=b.n;
select * from mt1;
n d
1 30
3 2
select * from mt2;
n d
1 30
1 30
DELETE a, b FROM mt1 a,mt2 b where a.n=b.n;
select * from mt1;
n d
3 2
select * from mt2;
n d
drop table mt1,mt2;
CREATE TABLE mt1 (`colA` int(10) unsigned NOT NULL auto_increment, `colB` int(11) NOT NULL default '0', PRIMARY KEY (`colA`));
INSERT INTO mt1 VALUES (4433,5424);
CREATE TABLE mt2 (`colC` int(10) unsigned NOT NULL default '0', `colA` int(10) unsigned NOT NULL default '0', `colD` int(10) unsigned NOT NULL default '0', `colE` int(10) unsigned NOT NULL default '0', `colF` int(10) unsigned NOT NULL default '0', PRIMARY KEY (`colC`,`colA`,`colD`,`colE`));
INSERT INTO mt2 VALUES (3,4433,10005,495,500);
INSERT INTO mt2 VALUES (3,4433,10005,496,500);
INSERT INTO mt2 VALUES (3,4433,10009,494,500);
INSERT INTO mt2 VALUES (3,4433,10011,494,500);
INSERT INTO mt2 VALUES (3,4433,10005,497,500);
INSERT INTO mt2 VALUES (3,4433,10013,489,500);
INSERT INTO mt2 VALUES (3,4433,10005,494,500);
INSERT INTO mt2 VALUES (3,4433,10005,493,500);
INSERT INTO mt2 VALUES (3,4433,10005,492,500);
UPDATE IGNORE mt2,mt1 set mt2.colE = mt2.colE + 1,colF=0 WHERE mt1.colA = mt2.colA AND (mt1.colB & 4096) > 0 AND (colE + 1) < colF;
Warnings:
Warning 1062 Duplicate entry '3-4433-10005-493' for key 'PRIMARY'
Warning 1062 Duplicate entry '3-4433-10005-494' for key 'PRIMARY'
Warning 1062 Duplicate entry '3-4433-10005-495' for key 'PRIMARY'
Warning 1062 Duplicate entry '3-4433-10005-496' for key 'PRIMARY'
Warning 1062 Duplicate entry '3-4433-10005-497' for key 'PRIMARY'
SELECT * FROM mt2;
colC colA colD colE colF
3 4433 10005 492 500
3 4433 10005 493 500
3 4433 10005 494 500
3 4433 10005 495 500
3 4433 10005 496 500
3 4433 10005 498 0
3 4433 10009 495 0
3 4433 10011 495 0
3 4433 10013 490 0
DROP TABLE mt1,mt2;
create table mt1(id1 smallint(5), field char(5));
create table mt2(id2 smallint(5), field char(5));
insert into mt1 values (1, 'a'), (2, 'aa');
insert into mt2 values (1, 'b'), (2, 'bb');
select * from mt1;
id1 field
1 a
2 aa
select * from mt2;
id2 field
1 b
2 bb
update mt2 inner join mt1 on mt1.id1=mt2.id2 set mt2.field=mt1.field where 0=1;
update mt2, mt1 set mt2.field=mt1.field where mt1.id1=mt2.id2 and 0=1;
delete mt1, mt2 from mt2 inner join mt1 on mt1.id1=mt2.id2 where 0=1;
delete mt1, mt2 from mt2,mt1 where mt1.id1=mt2.id2 and 0=1;
drop table mt1,mt2;
create table mt1 (n numeric(10));
create table mt2 (n numeric(10));
insert into mt2 values (1),(2),(4),(8),(16),(32);
select * from mt2 left outer join mt1 using (n);
n
1
16
2
32
4
8
delete mt1,mt2 from mt2 left outer join mt1 using (n);
select * from mt2 left outer join mt1 using (n);
n
drop table mt1,mt2 ;
create table mt1(id1 int not null primary key, t varchar(100)) pack_keys = 1;
create table mt2(id2 int not null, t varchar(100), index(id2)) pack_keys = 1;
delete mt1 from mt1,mt2 where mt1.id1 = mt2.id2 and mt1.id1 > 500;
drop table mt1,mt2;
create table mt1 (aclid bigint not null primary key, status tinyint(1) not null);
create table mt2 (refid bigint not null primary key, aclid bigint, index idx_acl(aclid));
insert into mt2 values(1,null);
delete mt2, mt1 from mt2 left join mt1 on (mt2.aclid=mt1.aclid) where mt2.refid='1';
drop table mt1, mt2;
create table mt1 (a int, primary key (a));
create table mt2 (a int, primary key (a));
create table mt3 (a int, primary key (a));
delete mt1,mt3 from mt1,mt2 where mt1.a=mt2.a and mt2.a=(select mt3.a from mt3 where mt1.a=mt3.a);
ERROR 42S02: Unknown table 'mt3' in MULTI DELETE
drop table mt1, mt2, mt3;
create table mt1 (col1 int);
create table mt2 (col1 int);
update mt1,mt2 set mt1.col1 = (select max(col1) from mt1) where mt1.col1 = mt2.col1;
ERROR HY000: You can't specify target table 'mt1' for update in FROM clause
delete mt1 from mt1,mt2 where mt1.col1 < (select max(col1) from mt1) and mt1.col1 = mt2.col1;
ERROR HY000: You can't specify target table 'mt1' for update in FROM clause
drop table mt1,mt2;
CREATE TABLE IF NOT EXISTS `mt1` (`id` int(11) NOT NULL auto_increment, `tst` text, `tsmt1` text, PRIMARY KEY (`id`));
CREATE TABLE IF NOT EXISTS `mt2` (`ID` int(11) NOT NULL auto_increment, `ParId` int(11) default NULL, `tst` text, `tsmt1` text, PRIMARY KEY (`ID`), KEY `IX_ParId_mt2` (`ParId`), FOREIGN KEY (`ParId`) REFERENCES `mt1` (`id`));
INSERT INTO mt1(tst,tsmt1) VALUES("MySQL","MySQL AB"), ("MSSQL","Microsoft"), ("ORACLE","ORACLE");
INSERT INTO mt2(ParId) VALUES(1), (2), (3);
select * from mt2;
ID ParId tst tsmt1
1 1 NULL NULL
2 2 NULL NULL
3 3 NULL NULL
UPDATE mt2, mt1 SET mt2.tst = mt1.tst, mt2.tsmt1 = mt1.tsmt1 WHERE mt2.ParId = mt1.Id;
select * from mt2;
ID ParId tst tsmt1
1 1 MySQL MySQL AB
2 2 MSSQL Microsoft
3 3 ORACLE ORACLE
drop table mt2,mt1;
CREATE TABLE mt1 ( a int );
CREATE TABLE mt2 ( a int );
DELETE mt1 FROM mt1, mt2 AS t3;
DELETE t4 FROM mt1, mt1 AS t4;
DELETE t3 FROM mt1 AS t3, mt1 AS t4;
DELETE mt1 FROM mt1 AS t3, mt2 AS t4;
ERROR 42S02: Unknown table 'mt1' in MULTI DELETE
INSERT INTO mt1 values (1),(2);
INSERT INTO mt2 values (1),(2);
DELETE mt1 FROM mt1 AS mt2, mt2 AS mt1 where mt1.a=mt2.a and mt1.a=1;
SELECT * from mt1;
a
1
2
SELECT * from mt2;
a
2
DELETE mt2 FROM mt1 AS mt2, mt2 AS mt1 where mt1.a=mt2.a and mt1.a=2;
SELECT * from mt1;
a
1
SELECT * from mt2;
a
2
DROP TABLE mt1,mt2;
create table mt1(id1 int not null auto_increment primary key, t char(12));
create table mt2(id2 int not null, t char(12));
create table mt3(id3 int not null, t char(12), index(id3));
select count(*) from mt1 where id1 > 95;
count(*)
5
select count(*) from mt2 where id2 > 95;
count(*)
25
select count(*) from mt3 where id3 > 95;
count(*)
250
update mt1,mt2,mt3 set mt1.t="aaa", mt2.t="bbb", mt3.t="cc" where mt1.id1 = mt2.id2 and mt2.id2 = mt3.id3 and mt1.id1 > 90;
select count(*) from mt1 where t = "aaa";
count(*)
10
select count(*) from mt1 where id1 > 90;
count(*)
10
select count(*) from mt2 where t = "bbb";
count(*)
50
select count(*) from mt2 where id2 > 90;
count(*)
50
select count(*) from mt3 where t = "cc";
count(*)
500
select count(*) from mt3 where id3 > 90;
count(*)
500
delete mt1.*, mt2.*, mt3.* from mt1,mt2,mt3 where mt1.id1 = mt2.id2 and mt2.id2 = mt3.id3 and mt1.id1 > 95;
check table mt1, mt2, mt3;
Table Op Msg_type Msg_text
test.mt1 check status OK
test.mt2 check status OK
test.mt3 check status OK
select count(*) from mt1 where id1 > 95;
count(*)
0
select count(*) from mt2 where id2 > 95;
count(*)
0
select count(*) from mt3 where id3 > 95;
count(*)
0
delete mt1, mt2, mt3 from mt1,mt2,mt3 where mt1.id1 = mt2.id2 and mt2.id2 = mt3.id3 and mt1.id1 > 5;
select count(*) from mt1 where id1 > 5;
count(*)
0
select count(*) from mt2 where id2 > 5;
count(*)
0
select count(*) from mt3 where id3 > 5;
count(*)
0
delete from mt1, mt2, mt3 using mt1,mt2,mt3 where mt1.id1 = mt2.id2 and mt2.id2 = mt3.id3 and mt1.id1 > 0;
select count(*) from mt1 where id1;
count(*)
0
select count(*) from mt2 where id2;
count(*)
0
select count(*) from mt3 where id3;
count(*)
0
drop table mt1,mt2,mt3;
CREATE TABLE t1(c1 TINYINT UNSIGNED NOT NULL, c2 TINYINT SIGNED NULL, c3 INT, INDEX idx2(c2));
INSERT INTO t1 VALUES(0,-128,0),(1,1,1),(2,2,2),(0,\N,3),(101,-101,4),(102,-102,5),(103,-103,6),(104,-104,7),(105,-105,8);
Warnings:
Warning 1287 '\N' is deprecated and will be removed in a future release. Please use NULL instead
SELECT * FROM t1;
c1 c2 c3
0 -128 0
0 NULL 3
1 1 1
101 -101 4
102 -102 5
103 -103 6
104 -104 7
105 -105 8
2 2 2
UPDATE t1 SET c1=110 WHERE c2 >-128 ORDER BY c2 LIMIT 2;
SELECT * FROM t1 WHERE c1=110;
c1 c2 c3
110 -104 7
110 -105 8
UPDATE t1 SET c1=c1+1,c2=NULL WHERE c1=101;
SELECT * FROM t1 WHERE c1=102 AND c2 IS NULL;
c1 c2 c3
102 NULL 4
UPDATE t1 SET c1=120 WHERE c2 IS NULL;
SELECT c1,c2 FROM t1 WHERE c1=120;
c1 c2
120 NULL
120 NULL
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=-120 WHERE c2=-102;
Warnings:
Warning 1264 Out of range value for column 'c1' at row 1
SELECT c1,c2 FROM t1 WHERE c2=-102;
c1 c2
0 -102
UPDATE t1 SET c1=0,c2=-128 WHERE c1=103 AND c2=-103;
SELECT * FROM t1 WHERE c1=0 AND c2=-128;
c1 c2 c3
0 -128 0
0 -128 6
UPDATE t1 SET c1=255,c2=127 WHERE c1=104 OR c2=105;
SELECT * FROM t1 WHERE c1=255 AND c2=127;
c1 c2 c3
UPDATE t1 SET c2=0 WHERE c1 IN (1,2);
SELECT * FROM t1 WHERE c2=0;
c1 c2 c3
1 0 1
2 0 2
INSERT INTO t1 VALUES(106,-106,9),(107,-107,10),(108,-108,11),(109,-109,12),(255,127,13);
UPDATE t1 SET c1=256,c2=128 WHERE c2 BETWEEN -108 AND -106;
Warnings:
Warning 1264 Out of range value for column 'c1' at row 1
Warning 1264 Out of range value for column 'c2' at row 1
Warning 1264 Out of range value for column 'c1' at row 2
Warning 1264 Out of range value for column 'c2' at row 2
Warning 1264 Out of range value for column 'c1' at row 3
Warning 1264 Out of range value for column 'c2' at row 3
SELECT COUNT(*) FROM t1 WHERE c1=256 AND c2=128 /* no rows */;
COUNT(*)
0
SELECT * FROM t1 WHERE c1=255 AND c2=127;
c1 c2 c3
255 127 10
255 127 11
255 127 13
255 127 9
UPDATE t1 SET c2=-129 WHERE c1=109 ORDER BY c1;
Warnings:
Warning 1264 Out of range value for column 'c2' at row 13
SELECT c1,c2 FROM t1 WHERE c1=109;
c1 c2
109 -128
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
INSERT INTO t1 VALUES(110,-110,14),(111,-111,15);
SET SQL_MODE=STRICT_ALL_TABLES;
UPDATE t1 SET c1=NULL WHERE c2=-110;
ERROR 23000: Column 'c1' cannot be null
UPDATE IGNORE t1 SET c1=NULL WHERE c2=-110 /* updates to default value 0 */;
Warnings:
Warning 1048 Column 'c1' cannot be null
SELECT c1,c2 FROM t1 WHERE c2=-110;
c1 c2
0 -110
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=NULL WHERE c2=-111 /* updates to default value 0 */;
Warnings:
Warning 1048 Column 'c1' cannot be null
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
SELECT * FROM t1 WHERE c1=0;
c1 c2 c3
0 -102 5
0 -110 14
0 -111 15
0 -128 0
0 -128 6
SELECT * FROM t1 WHERE c2>=-101 AND c1<=101 ORDER BY c2;
c1 c2 c3
1 0 1
2 0 2
UPDATE t1 SET c1=c1+1,c2=c2+1 WHERE c2>=-101 AND c1<=101 ORDER BY c2 LIMIT 2;
SELECT * FROM t1;
c1 c2 c3
0 -102 5
0 -110 14
0 -111 15
0 -128 0
0 -128 6
109 -128 12
110 -104 7
110 -105 8
120 NULL 3
120 NULL 4
2 1 1
255 127 10
255 127 11
255 127 13
255 127 9
3 1 2
CREATE TABLE t2(c1 TINYINT SIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, c2 TINYINT UNSIGNED NULL, c3 INT);
INSERT INTO t2(c1) VALUES(1),(2),(3),(4),(5);
UPDATE t2 SET c1=1 WHERE c1=3;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
UPDATE IGNORE t2 SET c1=1 WHERE c1>=3;
Warnings:
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
SELECT c1 FROM t2;
c1
1
2
3
4
5
TRUNCATE TABLE t1;
ALTER TABLE t1 CHANGE c1 c1 TINYINT UNSIGNED NOT NULL AUTO_INCREMENT, ADD PRIMARY KEY(c1);
INSERT INTO t1 VALUES(1,2,3),(4,5,6),(7,8,9),(10,11,12);
TRUNCATE TABLE t2;
INSERT INTO t2 VALUES(1,2,3),(4,5,6),(7,8,9),(10,11,12);
INSERT INTO t1(c2,c3) VALUES(13,14);
SELECT c1 FROM t1 WHERE c2=13;
c1
11
INSERT INTO t2(c2,c3) VALUES(13,14);
SELECT c1 FROM t2 WHERE c2=13;
c1
11
UPDATE t1 SET c1=255,c2=127 WHERE c2=13;
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
255 127
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t2 SET c1=0,c2=-128 WHERE c2=2;
Warnings:
Warning 1264 Out of range value for column 'c2' at row 1
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
255 127
UPDATE t2 SET c2=0 WHERE c2=5;
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
255 127
UPDATE t2 SET c1=127,c2=255 WHERE c2=13;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
127 255
UPDATE t2 SET c1=-128,c2=0 WHERE c2=2;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
127 255
UPDATE t2 SET c1=0,c2=0 WHERE c2=5;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
127 255
CREATE TABLE mt1 (c1 TINYINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
CREATE TABLE mt2 (c1 TINYINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
CREATE TABLE mt3 (c1 TINYINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
INSERT INTO mt1 VALUES(1,1),(2,2),(3,3),(4,4),(5,5);
INSERT INTO mt2 VALUES(11,1),(12,1),(13,1),(14,2),(15,6);
INSERT INTO mt3 VALUES(21,11),(22,11),(23,13),(24,14),(25,15);
UPDATE IGNORE mt1, mt2 ,mt3 SET mt1.c2 = 30, mt2.c2 = 40, mt3.c2=50 WHERE mt1.c1=mt2.c2 AND mt2.c1=mt3.c2;
SELECT * FROM mt1;
c1 c2
1 30
2 30
3 3
4 4
5 5
SELECT * FROM mt2;
c1 c2
11 40
12 1
13 40
14 40
15 6
SELECT * FROM mt3;
c1 c2
21 50
22 50
23 50
24 50
25 15
DROP TABLE mt1,mt2,mt3;
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
ALTER TABLE t2 CHANGE c2 c2 TINYINT UNSIGNED NULL, ADD KEY(c2);
INSERT INTO t1 VALUES(1,-1,1),(2,-2,2),(3,-3,3),(4,-4,4),(5,-5,5),(6,-6,6),(7,-7,7),(8,-8,8),(9,-9,9),(10,-10,10),(11,NULL,11);
INSERT INTO t2 VALUES(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(-7,7,7),(-8,8,8),(-9,9,9),(10,10,10),(-11,NULL,11),(-12,12,12);
UPDATE t1,t2 SET t1.c1=50,t1.c2=50,t2.c1=50,t2.c2=50 WHERE t2.c1=t1.c1;
SELECT * FROM t1,t2 WHERE t1.c1=50 AND t1.c2=50 AND t2.c1=50 AND t2.c2=50;
c1 c2 c3 c1 c2 c3
50 50 10 50 50 10
SELECT * FROM t1,t2 WHERE t2.c1=t1.c1;
c1 c2 c3 c1 c2 c3
50 50 10 50 50 10
ALTER TABLE t2 CHANGE c1 c1 TINYINT SIGNED NOT NULL, DROP PRIMARY KEY;
ALTER TABLE t2 CHANGE c1 c1 TINYINT SIGNED NOT NULL, ADD KEY(c1);
INSERT INTO t2 VALUES(-128,0,13),(127,255,14),(0,128,15),(127,127,16);
UPDATE t2 SET c1=-128 WHERE c2 <> 0 ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 <> 0 ORDER BY c2;
c1 c2 c3
-128 1 1
-128 2 2
-3 3 3
-4 4 4
-5 5 5
-6 6 6
-7 7 7
-8 8 8
-9 9 9
-12 12 12
50 50 10
127 127 16
0 128 15
127 255 14
UPDATE t2 SET c1=-128 WHERE c2 >= 0 ORDER BY c2 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 >= 0 ORDER BY c2 DESC;
c1 c2 c3
-128 255 14
-128 128 15
127 127 16
50 50 10
-12 12 12
-9 9 9
-8 8 8
-7 7 7
-6 6 6
-5 5 5
-4 4 4
-3 3 3
-128 2 2
-128 1 1
-128 0 13
UPDATE t2 SET c1=-128 WHERE c2 <= 3 ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 <= 3 ORDER BY c2;
c1 c2 c3
-128 0 13
-128 1 1
-128 2 2
-3 3 3
UPDATE t2 SET c1=-128 WHERE c2 <=> 4 ORDER BY c2 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 <=> 4 ORDER BY c2;
c1 c2 c3
-128 4 4
UPDATE t2 SET c1=-128 WHERE c2 BETWEEN 4 AND 7 ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 BETWEEN 4 AND 7 ORDER BY c2;
c1 c2 c3
-128 4 4
-128 5 5
-6 6 6
-7 7 7
UPDATE t2 SET c1=-128 WHERE c2 IN(8,9) ORDER BY c2 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 IN(8,9) ORDER BY c2 DESC;
c1 c2 c3
-128 9 9
-128 8 8
UPDATE t2 SET c1=-128 WHERE c2 IS NULL ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2;
c1 c2 c3
-128 NULL 11
UPDATE t2 SET c1=-128 WHERE c2>= 6 AND c2 < 9 ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2>= 6 AND c2 < 9 ORDER BY c2;
c1 c2 c3
-128 6 6
-128 7 7
-128 8 8
UPDATE t2 SET c1=-128 WHERE c1=-12 OR c2=1;
SELECT * FROM t2 WHERE c1=-128;
c1 c2 c3
-128 0 13
-128 1 1
-128 12 12
-128 128 15
-128 2 2
-128 255 14
-128 4 4
-128 5 5
-128 6 6
-128 7 7
-128 8 8
-128 9 9
-128 NULL 11
SELECT * FROM t2;
c1 c2 c3
-128 0 13
-128 1 1
-128 12 12
-128 128 15
-128 2 2
-128 255 14
-128 4 4
-128 5 5
-128 6 6
-128 7 7
-128 8 8
-128 9 9
-128 NULL 11
-3 3 3
127 127 16
50 50 10
SELECT c1 FROM t2;
c1
-128
-128
-128
-128
-128
-128
-128
-128
-128
-128
-128
-128
-128
-3
127
50
SELECT c1 FROM t2 ORDER BY c1 DESC;
c1
127
50
-3
-128
-128
-128
-128
-128
-128
-128
-128
-128
-128
-128
-128
-128
SELECT * FROM t2 WHERE c1=-128;
c1 c2 c3
-128 0 13
-128 1 1
-128 12 12
-128 128 15
-128 2 2
-128 255 14
-128 4 4
-128 5 5
-128 6 6
-128 7 7
-128 8 8
-128 9 9
-128 NULL 11
SELECT * FROM t2 WHERE c1 <> -128 ORDER BY c1,c2;
c1 c2 c3
-3 3 3
50 50 10
127 127 16
SELECT * FROM t2 WHERE c1 <> -128 ORDER BY c1,c2 DESC LIMIT 2;
c1 c2 c3
-3 3 3
50 50 10
SELECT * FROM t2 WHERE c1 > -128 ORDER BY c1,c2 DESC;
c1 c2 c3
-3 3 3
50 50 10
127 127 16
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1,c2 LIMIT 2;
c1 c2 c3
-128 NULL 11
-128 0 13
SELECT * FROM t2 WHERE c1 < -128 ORDER BY c1,c2;
c1 c2 c3
SELECT * FROM t2 WHERE c1 <= -128 ORDER BY c1,c2 DESC LIMIT 2;
c1 c2 c3
-128 255 14
-128 128 15
SELECT * FROM t2 WHERE c1 <=> -128 ORDER BY c1,c2 DESC;
c1 c2 c3
-128 255 14
-128 128 15
-128 12 12
-128 9 9
-128 8 8
-128 7 7
-128 6 6
-128 5 5
-128 4 4
-128 2 2
-128 1 1
-128 0 13
-128 NULL 11
SELECT * FROM t2 WHERE c1 <=> -128 ORDER BY c1,c2 LIMIT 2;
c1 c2 c3
-128 NULL 11
-128 0 13
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1,c2;
c1 c2 c3
-128 NULL 11
-128 0 13
-128 1 1
-128 2 2
-128 4 4
-128 5 5
-128 6 6
-128 7 7
-128 8 8
-128 9 9
-128 12 12
-128 128 15
-128 255 14
-3 3 3
50 50 10
127 127 16
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1,c2 DESC LIMIT 2;
c1 c2 c3
-128 255 14
-128 128 15
SELECT * FROM t2 WHERE c1 IN(-128,127) ORDER BY c1,c2 DESC;
c1 c2 c3
-128 255 14
-128 128 15
-128 12 12
-128 9 9
-128 8 8
-128 7 7
-128 6 6
-128 5 5
-128 4 4
-128 2 2
-128 1 1
-128 0 13
-128 NULL 11
127 127 16
SELECT * FROM t2 WHERE c1 IN(-128,127) ORDER BY c1,c2 LIMIT 2;
c1 c2 c3
-128 NULL 11
-128 0 13
SELECT * FROM t2 WHERE c1>=-128 AND c1 <= 127 ORDER BY c1,c2 DESC;
c1 c2 c3
-128 255 14
-128 128 15
-128 12 12
-128 9 9
-128 8 8
-128 7 7
-128 6 6
-128 5 5
-128 4 4
-128 2 2
-128 1 1
-128 0 13
-128 NULL 11
-3 3 3
50 50 10
127 127 16
SELECT * FROM t2 WHERE c1>=-128 AND c1 <= 127 ORDER BY c1,c2 LIMIT 2;
c1 c2 c3
-128 NULL 11
-128 0 13
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1;
c1 c2 c3
-128 NULL 11
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-128 NULL 11
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c2,c1 DESC;
c1 c2 c3
-128 0 13
-128 1 1
-128 2 2
-3 3 3
-128 4 4
-128 5 5
-128 6 6
-128 7 7
-128 8 8
-128 9 9
-128 12 12
50 50 10
127 127 16
-128 128 15
-128 255 14
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-128 0 13
-128 1 1
SELECT * FROM t2 WHERE c1=-128 OR c2=3;
c1 c2 c3
-128 0 13
-128 1 1
-128 12 12
-128 128 15
-128 2 2
-128 255 14
-128 4 4
-128 5 5
-128 6 6
-128 7 7
-128 8 8
-128 9 9
-128 NULL 11
-3 3 3
CREATE TABLE mt1 (a tinyint not null primary key, b tinyint not null, key (b));
CREATE TABLE mt2 (a tinyint not null primary key, b tinyint not null, key (b));
INSERT INTO mt1 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
INSERT INTO mt2 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
update mt1,mt2 set mt1.a=mt1.a+100;
select * from mt1;
a b
101 1
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
update mt1,mt2 set mt1.a=mt1.a+100 where mt1.a=101;
Warnings:
Warning 1264 Out of range value for column 'a' at row 1
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
select * from mt1;
a b
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
127 1
update mt1,mt2 set mt1.b=mt1.b+10 where mt1.b=2;
select * from mt1;
a b
102 12
103 3
104 4
105 5
106 6
107 7
108 8
109 9
127 1
update mt1 straight_join mt2 set mt1.b=mt1.b+2,mt2.b=mt1.b+10 where mt1.b between 3 and 5 and mt2.a=mt1.a-100;
select * from mt1;
a b
102 12
103 5
104 6
105 7
106 6
107 7
108 8
109 9
127 1
select * from mt2;
a b
1 1
2 2
3 13
4 14
5 15
6 6
7 7
8 8
9 9
update mt1,mt2 set mt1.b=mt2.b, mt1.a=mt2.a where mt1.a=mt2.a and not exists (select * from mt2 where mt2.a > 10);
drop table mt1,mt2;
TRUNCATE TABLE t2;
INSERT INTO t2 VALUES(-128,0,1),(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(0,0,7),(1,1,8),(127,255,9);
SELECT * FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1;
c1 c2 c3
-3 3 3
127 255 9
DELETE FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1;
c1 c2 c3
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1;
c1 c2 c3
-128 0 1
-6 6 6
-5 5 5
-4 4 4
-2 2 2
-1 1 1
0 0 7
1 1 8
DELETE FROM t2 WHERE c1 >= -128 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-2 2 2
-1 1 1
0 0 7
1 1 8
SELECT * FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC;
c1 c2 c3
1 1 8
0 0 7
-1 1 1
-2 2 2
-4 4 4
-5 5 5
DELETE FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC;
c1 c2 c3
-1 1 1
-2 2 2
-4 4 4
-5 5 5
SELECT * FROM t2 WHERE c1 < 0 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-2 2 2
-1 1 1
DELETE FROM t2 WHERE c1 < 0 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 < 0 ORDER BY c1;
c1 c2 c3
-2 2 2
-1 1 1
SELECT * FROM t2 WHERE c1 > -3 ORDER BY c1 DESC;
c1 c2 c3
-1 1 1
-2 2 2
DELETE FROM t2 WHERE c1 > -3 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 > -3 ORDER BY c1 DESC;
c1 c2 c3
INSERT INTO t2 VALUES(-128,0,1),(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(0,0,7),(1,1,8),(2,NULL,9),(3,NULL,10),(127,255,11);
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1;
c1 c2 c3
-128 0 1
-6 6 6
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 0 7
1 1 8
2 NULL 9
3 NULL 10
127 255 11
DELETE FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 0 7
1 1 8
2 NULL 9
3 NULL 10
127 255 11
SELECT * FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
c1 c2 c3
0 0 7
-2 2 2
DELETE FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
SELECT * FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1;
c1 c2 c3
-1 1 1
1 1 8
DELETE FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-3 3 3
127 255 11
DELETE FROM t2 WHERE c2 IS NOT NULL ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c1;
c1 c2 c3
-3 3 3
127 255 11
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC;
c1 c2 c3
3 NULL 10
2 NULL 9
DELETE FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC;
c1 c2 c3
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
INSERT INTO t1 VALUES(254,127,1),(0,-128,2),(1,127,3),(2,-128,4),(3,NULL,5);
INSERT INTO t2 VALUES(127,255,1),(127,1,2),(-128,0,3),(-128,2,4),(-1,NULL,5);
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
c1 c2 c3 c1 c2 c3
1 127 3 127 1 2
1 127 3 127 255 1
2 -128 4 -128 0 3
2 -128 4 -128 2 4
254 127 1 127 1 2
254 127 1 127 255 1
255 -128 2 -128 0 3
255 -128 2 -128 2 4
255 -128 2 127 255 1
3 NULL 5 -1 NULL 5
DELETE t1,t2 FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
c1 c2 c3 c1 c2 c3
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
INSERT INTO t1 VALUES(254,127,1),(0,-128,2),(1,127,3),(2,-128,4),(3,NULL,5);
INSERT INTO t2 VALUES(127,255,1),(127,1,2),(-128,0,3),(-128,2,4),(-1,NULL,5);
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2;
c1 c2 c3 c1 c2 c3
1 127 3 127 1 2
1 127 3 127 255 1
2 -128 4 -128 0 3
2 -128 4 -128 2 4
254 127 1 127 1 2
254 127 1 127 255 1
255 -128 2 -128 0 3
255 -128 2 -128 2 4
DELETE FROM a1, a2 USING t1 AS a1 INNER JOIN t2 AS a2 WHERE a2.c1=a1.c2;
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2;
c1 c2 c3 c1 c2 c3
DELETE FROM t1,t2 using t1,t2 where t1.c1=(select c1 from t1);
ERROR HY000: You can't specify target table 't1' for update in FROM clause
CREATE TABLE t3(c1 TINYINT UNSIGNED NOT NULL PRIMARY KEY, c2 TINYINT SIGNED NULL, c3 INT);
CREATE TABLE t4(c1 TINYINT UNSIGNED, c2 INT);
INSERT INTO t3 VALUES(200,126,1),(250,-127,2);
INSERT INTO t4 VALUES(200,1),(150,3);
SELECT * FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
c1 c2 c3 c1 c2
200 126 1 200 1
DELETE t3.*,t4.* FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
SELECT * FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
c1 c2 c3 c1 c2
DROP TABLE t1,t2,t3,t4;
CREATE TABLE t1(c1 SMALLINT UNSIGNED NOT NULL, c2 SMALLINT SIGNED NULL, c3 INT, INDEX idx2(c2));
INSERT INTO t1 VALUES(0,-128,0),(1,1,1),(2,2,2),(0,\N,3),(101,-101,4),(102,-102,5),(103,-103,6),(104,-104,7),(105,-105,8);
Warnings:
Warning 1287 '\N' is deprecated and will be removed in a future release. Please use NULL instead
SELECT * FROM t1;
c1 c2 c3
0 -128 0
0 NULL 3
1 1 1
101 -101 4
102 -102 5
103 -103 6
104 -104 7
105 -105 8
2 2 2
UPDATE t1 SET c1=110 WHERE c2 >-128 ORDER BY c2 LIMIT 2;
SELECT * FROM t1 WHERE c1=110;
c1 c2 c3
110 -104 7
110 -105 8
UPDATE t1 SET c1=c1+1,c2=NULL WHERE c1=101;
SELECT * FROM t1 WHERE c1=102 AND c2 IS NULL;
c1 c2 c3
102 NULL 4
UPDATE t1 SET c1=120 WHERE c2 IS NULL;
SELECT c1,c2 FROM t1 WHERE c1=120;
c1 c2
120 NULL
120 NULL
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=-120 WHERE c2=-102;
Warnings:
Warning 1264 Out of range value for column 'c1' at row 1
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
SELECT c1,c2 FROM t1 WHERE c2=-102;
c1 c2
0 -102
UPDATE t1 SET c1=0,c2=-32768 WHERE c1=103 AND c2=-103;
SELECT * FROM t1 WHERE c1=0 AND c2=-32768;
c1 c2 c3
0 -32768 6
UPDATE t1 SET c1=65535,c2=32767 WHERE c1=104 OR c2=105;
SELECT * FROM t1 WHERE c1=65535 AND c2=32767;
c1 c2 c3
UPDATE t1 SET c2=0 WHERE c1 IN (1,2);
SELECT * FROM t1 WHERE c2=0;
c1 c2 c3
1 0 1
2 0 2
INSERT INTO t1 VALUES(106,-106,9),(107,-107,10),(108,-108,11),(109,-109,12),(255,127,13);
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=65536,c2=32768 WHERE c2 BETWEEN -108 AND -106;
Warnings:
Warning 1264 Out of range value for column 'c1' at row 1
Warning 1264 Out of range value for column 'c2' at row 1
Warning 1264 Out of range value for column 'c1' at row 2
Warning 1264 Out of range value for column 'c2' at row 2
Warning 1264 Out of range value for column 'c1' at row 3
Warning 1264 Out of range value for column 'c2' at row 3
SELECT COUNT(*) FROM t1 WHERE c1=65536 AND c2=32768 /* no rows */;
COUNT(*)
0
SELECT * FROM t1 WHERE c1=65535 AND c2=32767;
c1 c2 c3
65535 32767 10
65535 32767 11
65535 32767 9
UPDATE t1 SET c2=-32769 WHERE c1=109 ORDER BY c1;
Warnings:
Warning 1264 Out of range value for column 'c2' at row 13
SELECT c1,c2 FROM t1 WHERE c1=109;
c1 c2
109 -32768
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
INSERT INTO t1 VALUES(110,-110,14),(111,-111,15);
SET SQL_MODE=STRICT_ALL_TABLES;
UPDATE t1 SET c1=NULL WHERE c2=-110;
ERROR 23000: Column 'c1' cannot be null
UPDATE IGNORE t1 SET c1=NULL WHERE c2=-110 /* updates to default value 0 */;
Warnings:
Warning 1048 Column 'c1' cannot be null
SELECT c1,c2 FROM t1 WHERE c2=-110;
c1 c2
0 -110
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=NULL WHERE c2=-111 /* updates to default value 0 */;
Warnings:
Warning 1048 Column 'c1' cannot be null
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
SELECT * FROM t1 WHERE c1=0;
c1 c2 c3
0 -102 5
0 -110 14
0 -111 15
0 -128 0
0 -32768 6
SELECT * FROM t1 WHERE c2>=-101 AND c1<=101 ORDER BY c2;
c1 c2 c3
1 0 1
2 0 2
UPDATE t1 SET c1=c1+1,c2=c2+1 WHERE c2>=-101 AND c1<=101 ORDER BY c2 LIMIT 2;
SELECT * FROM t1;
c1 c2 c3
0 -102 5
0 -110 14
0 -111 15
0 -128 0
0 -32768 6
109 -32768 12
110 -104 7
110 -105 8
120 NULL 3
120 NULL 4
2 1 1
255 127 13
3 1 2
65535 32767 10
65535 32767 11
65535 32767 9
CREATE TABLE t2(c1 SMALLINT SIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, c2 SMALLINT UNSIGNED NULL, c3 INT);
INSERT INTO t2(c1) VALUES(1),(2),(3),(4),(5);
UPDATE t2 SET c1=1 WHERE c1=3;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
UPDATE IGNORE t2 SET c1=1 WHERE c1>=3;
Warnings:
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
SELECT c1 FROM t2;
c1
1
2
3
4
5
TRUNCATE TABLE t1;
ALTER TABLE t1 CHANGE c1 c1 SMALLINT UNSIGNED NOT NULL AUTO_INCREMENT, ADD PRIMARY KEY(c1);
INSERT INTO t1 VALUES(1,2,3),(4,5,6),(7,8,9),(10,11,12);
TRUNCATE TABLE t2;
INSERT INTO t2 VALUES(1,2,3),(4,5,6),(7,8,9),(10,11,12);
INSERT INTO t1(c2,c3) VALUES(13,14);
SELECT c1 FROM t1 WHERE c2=13;
c1
11
INSERT INTO t2(c2,c3) VALUES(13,14);
SELECT c1 FROM t2 WHERE c2=13;
c1
11
UPDATE t1 SET c1=65535,c2=32767 WHERE c2=13;
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
65535 32767
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t2 SET c1=0,c2=-32768 WHERE c2=2;
Warnings:
Warning 1264 Out of range value for column 'c2' at row 1
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
65535 32767
UPDATE t2 SET c2=0 WHERE c2=5;
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
65535 32767
UPDATE t2 SET c1=32767,c2=65535 WHERE c2=13;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
32767 65535
UPDATE t2 SET c1=-32768,c2=0 WHERE c2=2;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
32767 65535
UPDATE t2 SET c1=0,c2=0 WHERE c2=5;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
32767 65535
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
CREATE TABLE mt1 (c1 SMALLINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
CREATE TABLE mt2 (c1 SMALLINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
CREATE TABLE mt3 (c1 SMALLINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
INSERT INTO mt1 VALUES(1,1),(2,2),(3,3),(4,4),(5,5);
INSERT INTO mt2 VALUES(11,1),(12,1),(13,1),(14,2),(15,6);
INSERT INTO mt3 VALUES(21,11),(22,11),(23,13),(24,14),(25,15);
UPDATE IGNORE mt1, mt2 ,mt3 SET mt1.c2 = 30, mt2.c2 = 40, mt3.c2=50 WHERE mt1.c1=mt2.c2 AND mt2.c1=mt3.c2;
SELECT * FROM mt1;
c1 c2
1 30
2 30
3 3
4 4
5 5
SELECT * FROM mt2;
c1 c2
11 40
12 1
13 40
14 40
15 6
SELECT * FROM mt3;
c1 c2
21 50
22 50
23 50
24 50
25 15
DROP TABLE mt1,mt2,mt3;
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
ALTER TABLE t2 CHANGE c2 c2 SMALLINT UNSIGNED NULL, ADD KEY(c2);
INSERT INTO t1 VALUES(1,-1,1),(2,-2,2),(3,-3,3),(4,-4,4),(5,-5,5),(6,-6,6),(7,-7,7),(8,-8,8),(9,-9,9),(10,-10,10),(11,NULL,11);
INSERT INTO t2 VALUES(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(-7,7,7),(-8,8,8),(-9,9,9),(10,10,10),(-11,NULL,11),(-12,12,12);
UPDATE t1,t2 SET t1.c1=50,t1.c2=50,t2.c1=50,t2.c2=50 WHERE t2.c1=t1.c1;
SELECT * FROM t1,t2 WHERE t1.c1=50 AND t1.c2=50 AND t2.c1=50 AND t2.c2=50;
c1 c2 c3 c1 c2 c3
50 50 10 50 50 10
SELECT * FROM t1,t2 WHERE t2.c1=t1.c1;
c1 c2 c3 c1 c2 c3
50 50 10 50 50 10
ALTER TABLE t2 CHANGE c1 c1 SMALLINT SIGNED NOT NULL, DROP PRIMARY KEY;
ALTER TABLE t2 CHANGE c1 c1 SMALLINT SIGNED NOT NULL, ADD KEY(c1);
INSERT INTO t2 VALUES(-32768,0,12),(0,255,13),(32767,65535,14);
UPDATE t2 SET c2=65535 WHERE c1 <> 0 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c2 <> 0 ORDER BY c1;
c1 c2 c3
-32768 65535 12
-12 65535 12
-9 9 9
-8 8 8
-7 7 7
-6 6 6
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 255 13
50 50 10
32767 65535 14
UPDATE t2 SET c2=65535 WHERE c1 >= 0 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 >= 0 ORDER BY c1 DESC;
c1 c2 c3
32767 65535 14
50 65535 10
0 255 13
UPDATE t2 SET c2=65535 WHERE c1 <= -9 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 <= -9 ORDER BY c1;
c1 c2 c3
-32768 65535 12
-12 65535 12
-11 NULL 11
-9 9 9
UPDATE t2 SET c2=65535 WHERE c1 <=> -3 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 <=> -3 ORDER BY c1;
c1 c2 c3
-3 65535 3
UPDATE t2 SET c2=65535 WHERE c1 BETWEEN -6 AND -4 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 BETWEEN -6 AND -4 ORDER BY c1;
c1 c2 c3
-6 65535 6
-5 65535 5
-4 4 4
UPDATE t2 SET c2=65535 WHERE c1 IN(-7,-8) ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 IN(-7,-8) ORDER BY c1 DESC;
c1 c2 c3
-7 65535 7
-8 65535 8
UPDATE t2 SET c2=65535 WHERE c2 IS NULL ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2;
c1 c2 c3
UPDATE t2 SET c2=65535 WHERE c1>= -32768 AND c1 < -9 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1>= -32768 AND c1 < -9 ORDER BY c1;
c1 c2 c3
-32768 65535 12
-12 65535 12
-11 65535 11
UPDATE t2 SET c2=65535 WHERE c1=-2 OR c2=1;
SELECT * FROM t2 WHERE c2=65535;
c1 c2 c3
-1 65535 1
-11 65535 11
-12 65535 12
-2 65535 2
-3 65535 3
-32768 65535 12
-5 65535 5
-6 65535 6
-7 65535 7
-8 65535 8
32767 65535 14
50 65535 10
SELECT * FROM t2;
c1 c2 c3
-1 65535 1
-11 65535 11
-12 65535 12
-2 65535 2
-3 65535 3
-32768 65535 12
-4 4 4
-5 65535 5
-6 65535 6
-7 65535 7
-8 65535 8
-9 9 9
0 255 13
32767 65535 14
50 65535 10
SELECT c2 FROM t2;
c2
255
4
65535
65535
65535
65535
65535
65535
65535
65535
65535
65535
65535
65535
9
SELECT c2 FROM t2 ORDER BY c2 DESC;
c2
65535
65535
65535
65535
65535
65535
65535
65535
65535
65535
65535
65535
255
9
4
SELECT * FROM t2 WHERE c2=65535;
c1 c2 c3
-1 65535 1
-11 65535 11
-12 65535 12
-2 65535 2
-3 65535 3
-32768 65535 12
-5 65535 5
-6 65535 6
-7 65535 7
-8 65535 8
32767 65535 14
50 65535 10
SELECT * FROM t2 WHERE c2 <> 65535 ORDER BY c2,c1;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
SELECT * FROM t2 WHERE c2 <> 65535 ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 > 65535 ORDER BY c2,c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c2 >= 65535 ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-32768 65535 12
-12 65535 12
SELECT * FROM t2 WHERE c2 < 65535 ORDER BY c2,c1;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
SELECT * FROM t2 WHERE c2 <= 65535 ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 <=> 65535 ORDER BY c2,c1 DESC;
c1 c2 c3
32767 65535 14
50 65535 10
-1 65535 1
-2 65535 2
-3 65535 3
-5 65535 5
-6 65535 6
-7 65535 7
-8 65535 8
-11 65535 11
-12 65535 12
-32768 65535 12
SELECT * FROM t2 WHERE c2 <=> 65535 ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-32768 65535 12
-12 65535 12
SELECT * FROM t2 WHERE c2 BETWEEN 0 AND 65535 ORDER BY c2,c1;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
-32768 65535 12
-12 65535 12
-11 65535 11
-8 65535 8
-7 65535 7
-6 65535 6
-5 65535 5
-3 65535 3
-2 65535 2
-1 65535 1
50 65535 10
32767 65535 14
SELECT * FROM t2 WHERE c2 BETWEEN 0 AND 65535 ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 IN(0,65535) ORDER BY c2,c1 DESC;
c1 c2 c3
32767 65535 14
50 65535 10
-1 65535 1
-2 65535 2
-3 65535 3
-5 65535 5
-6 65535 6
-7 65535 7
-8 65535 8
-11 65535 11
-12 65535 12
-32768 65535 12
SELECT * FROM t2 WHERE c2 IN(0,65535) ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-32768 65535 12
-12 65535 12
SELECT * FROM t2 WHERE c2 >=0 AND c2 <= 65535 ORDER BY c2,c1 DESC;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
32767 65535 14
50 65535 10
-1 65535 1
-2 65535 2
-3 65535 3
-5 65535 5
-6 65535 6
-7 65535 7
-8 65535 8
-11 65535 11
-12 65535 12
-32768 65535 12
SELECT * FROM t2 WHERE c2 >=0 AND c2 <= 65535 ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c2,c1 DESC;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
32767 65535 14
50 65535 10
-1 65535 1
-2 65535 2
-3 65535 3
-5 65535 5
-6 65535 6
-7 65535 7
-8 65535 8
-11 65535 11
-12 65535 12
-32768 65535 12
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2=65535 OR c1=-4;
c1 c2 c3
-1 65535 1
-11 65535 11
-12 65535 12
-2 65535 2
-3 65535 3
-32768 65535 12
-4 4 4
-5 65535 5
-6 65535 6
-7 65535 7
-8 65535 8
32767 65535 14
50 65535 10
CREATE TABLE mt1 (a smallint not null primary key, b smallint not null, key (b));
CREATE TABLE mt2 (a smallint not null primary key, b smallint not null, key (b));
INSERT INTO mt1 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
INSERT INTO mt2 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
update mt1,mt2 set mt1.a=mt1.a+100;
select * from mt1;
a b
101 1
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
update mt1,mt2 set mt1.a=mt1.a+100 where mt1.a=101;
select * from mt1;
a b
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
201 1
update mt1,mt2 set mt1.b=mt1.b+10 where mt1.b=2;
select * from mt1;
a b
102 12
103 3
104 4
105 5
106 6
107 7
108 8
109 9
201 1
update mt1 straight_join mt2 set mt1.b=mt1.b+2,mt2.b=mt1.b+10 where mt1.b between 3 and 5 and mt2.a=mt1.a-100;
select * from mt1;
a b
102 12
103 5
104 6
105 7
106 6
107 7
108 8
109 9
201 1
select * from mt2;
a b
1 1
2 2
3 13
4 14
5 15
6 6
7 7
8 8
9 9
update mt1,mt2 set mt1.b=mt2.b, mt1.a=mt2.a where mt1.a=mt2.a and not exists (select * from mt2 where mt2.a > 10);
drop table mt1,mt2;
TRUNCATE TABLE t2;
INSERT INTO t2 VALUES(-128,0,1),(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(0,0,7),(1,1,8),(127,255,9);
SELECT * FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1;
c1 c2 c3
-3 3 3
127 255 9
DELETE FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1;
c1 c2 c3
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1;
c1 c2 c3
-128 0 1
-6 6 6
-5 5 5
-4 4 4
-2 2 2
-1 1 1
0 0 7
1 1 8
DELETE FROM t2 WHERE c1 >= -128 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-2 2 2
-1 1 1
0 0 7
1 1 8
SELECT * FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC;
c1 c2 c3
1 1 8
0 0 7
-1 1 1
-2 2 2
-4 4 4
-5 5 5
DELETE FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC;
c1 c2 c3
-1 1 1
-2 2 2
-4 4 4
-5 5 5
SELECT * FROM t2 WHERE c1 < 0 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-2 2 2
-1 1 1
DELETE FROM t2 WHERE c1 < 0 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 < 0 ORDER BY c1;
c1 c2 c3
-2 2 2
-1 1 1
SELECT * FROM t2 WHERE c1 > -3 ORDER BY c1 DESC;
c1 c2 c3
-1 1 1
-2 2 2
DELETE FROM t2 WHERE c1 > -3 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 > -3 ORDER BY c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c1=-3 OR c2=2;
c1 c2 c3
DELETE FROM t2 WHERE c1=-3 OR c2=2;
SELECT * FROM t2 WHERE c1=-3 OR c2=2;
c1 c2 c3
INSERT INTO t2 VALUES(-128,0,1),(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(0,0,7),(1,1,8),(2,NULL,9),(3,NULL,10),(127,255,11);
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1;
c1 c2 c3
-128 0 1
-6 6 6
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 0 7
1 1 8
2 NULL 9
3 NULL 10
127 255 11
DELETE FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 0 7
1 1 8
2 NULL 9
3 NULL 10
127 255 11
SELECT * FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
c1 c2 c3
0 0 7
-2 2 2
DELETE FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
SELECT * FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1;
c1 c2 c3
-1 1 1
1 1 8
DELETE FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-3 3 3
127 255 11
DELETE FROM t2 WHERE c2 IS NOT NULL ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c1;
c1 c2 c3
-3 3 3
127 255 11
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC;
c1 c2 c3
3 NULL 10
2 NULL 9
DELETE FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC;
c1 c2 c3
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
INSERT INTO t1 VALUES(254,127,1),(0,-128,2),(1,127,3),(2,-128,4),(3,NULL,5);
INSERT INTO t2 VALUES(127,255,1),(127,1,2),(-128,0,3),(-128,2,4),(-1,NULL,5);
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
c1 c2 c3 c1 c2 c3
1 127 3 127 1 2
1 127 3 127 255 1
2 -128 4 -128 0 3
2 -128 4 -128 2 4
254 127 1 127 1 2
254 127 1 127 255 1
255 -128 2 -128 0 3
255 -128 2 -128 2 4
255 -128 2 127 255 1
3 NULL 5 -1 NULL 5
DELETE t1,t2 FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
c1 c2 c3 c1 c2 c3
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
INSERT INTO t1 VALUES(254,127,1),(0,-128,2),(1,127,3),(2,-128,4),(3,NULL,5);
INSERT INTO t2 VALUES(127,255,1),(127,1,2),(-128,0,3),(-128,2,4),(-1,NULL,5);
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2;
c1 c2 c3 c1 c2 c3
1 127 3 127 1 2
1 127 3 127 255 1
2 -128 4 -128 0 3
2 -128 4 -128 2 4
254 127 1 127 1 2
254 127 1 127 255 1
255 -128 2 -128 0 3
255 -128 2 -128 2 4
DELETE FROM a1, a2 USING t1 AS a1 INNER JOIN t2 AS a2 WHERE a2.c1=a1.c2;
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2;
c1 c2 c3 c1 c2 c3
DELETE FROM t1,t2 using t1,t2 where t1.c1=(select c1 from t1);
ERROR HY000: You can't specify target table 't1' for update in FROM clause
CREATE TABLE t3(c1 SMALLINT UNSIGNED NOT NULL PRIMARY KEY, c2 SMALLINT SIGNED NULL, c3 INT);
CREATE TABLE t4(c1 SMALLINT UNSIGNED, c2 INT);
INSERT INTO t3 VALUES(200,126,1),(250,-127,2);
INSERT INTO t4 VALUES(200,1),(150,3);
SELECT * FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
c1 c2 c3 c1 c2
200 126 1 200 1
DELETE t3.*,t4.* FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
SELECT * FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
c1 c2 c3 c1 c2
DROP TABLE t1,t2,t3,t4;
CREATE TABLE t1(c1 MEDIUMINT UNSIGNED NOT NULL, c2 MEDIUMINT SIGNED NULL, c3 INT, INDEX idx2(c2));
INSERT INTO t1 VALUES(0,-128,0),(1,1,1),(2,2,2),(0,\N,3),(101,-101,4),(102,-102,5),(103,-103,6),(104,-104,7),(105,-105,8);
Warnings:
Warning 1287 '\N' is deprecated and will be removed in a future release. Please use NULL instead
SELECT * FROM t1;
c1 c2 c3
0 -128 0
0 NULL 3
1 1 1
101 -101 4
102 -102 5
103 -103 6
104 -104 7
105 -105 8
2 2 2
UPDATE t1 SET c1=110 WHERE c2 >-128 ORDER BY c2 LIMIT 2;
SELECT * FROM t1 WHERE c1=110;
c1 c2 c3
110 -104 7
110 -105 8
UPDATE t1 SET c1=c1+1,c2=NULL WHERE c1=101;
SELECT * FROM t1 WHERE c1=102 AND c2 IS NULL;
c1 c2 c3
102 NULL 4
UPDATE t1 SET c1=120 WHERE c2 IS NULL;
SELECT c1,c2 FROM t1 WHERE c1=120;
c1 c2
120 NULL
120 NULL
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=-120 WHERE c2=-102;
Warnings:
Warning 1264 Out of range value for column 'c1' at row 1
SELECT c1,c2 FROM t1 WHERE c2=-102;
c1 c2
0 -102
UPDATE t1 SET c1=0,c2=-8388608 WHERE c1=103 AND c2=-103;
SELECT * FROM t1 WHERE c1=0 AND c2=-8388608;
c1 c2 c3
0 -8388608 6
UPDATE t1 SET c1=16777215,c2=8388607 WHERE c1=104 OR c2=105;
SELECT * FROM t1 WHERE c1=16777215 AND c2=8388607;
c1 c2 c3
UPDATE t1 SET c2=0 WHERE c1 IN (1,2);
SELECT * FROM t1 WHERE c2=0;
c1 c2 c3
1 0 1
2 0 2
INSERT INTO t1 VALUES(106,-106,9),(107,-107,10),(108,-108,11),(109,-109,12),(255,127,13);
UPDATE t1 SET c1=16777216,c2=8388608 WHERE c2 BETWEEN -108 AND -106;
Warnings:
Warning 1264 Out of range value for column 'c1' at row 1
Warning 1264 Out of range value for column 'c2' at row 1
Warning 1264 Out of range value for column 'c1' at row 2
Warning 1264 Out of range value for column 'c2' at row 2
Warning 1264 Out of range value for column 'c1' at row 3
Warning 1264 Out of range value for column 'c2' at row 3
SELECT COUNT(*) FROM t1 WHERE c1=16777216 AND c2=8388608 /* no rows */;
COUNT(*)
0
SELECT * FROM t1 WHERE c1=16777215 AND c2=8388607;
c1 c2 c3
16777215 8388607 10
16777215 8388607 11
16777215 8388607 9
UPDATE t1 SET c2=-8388609 WHERE c1=109 ORDER BY c1;
Warnings:
Warning 1264 Out of range value for column 'c2' at row 13
SELECT c1,c2 FROM t1 WHERE c1=109;
c1 c2
109 -8388608
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
INSERT INTO t1 VALUES(110,-110,14),(111,-111,15);
SET SQL_MODE=STRICT_ALL_TABLES;
UPDATE t1 SET c1=NULL WHERE c2=-110;
ERROR 23000: Column 'c1' cannot be null
UPDATE IGNORE t1 SET c1=NULL WHERE c2=-110 /* updates to default value 0 */;
Warnings:
Warning 1048 Column 'c1' cannot be null
SELECT c1,c2 FROM t1 WHERE c2=-110;
c1 c2
0 -110
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=NULL WHERE c2=-111 /* updates to default value 0 */;
Warnings:
Warning 1048 Column 'c1' cannot be null
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
SELECT * FROM t1 WHERE c1=0;
c1 c2 c3
0 -102 5
0 -110 14
0 -111 15
0 -128 0
0 -8388608 6
SELECT * FROM t1 WHERE c2>=-101 AND c1<=101 ORDER BY c2;
c1 c2 c3
1 0 1
2 0 2
UPDATE t1 SET c1=c1+1,c2=c2+1 WHERE c2>=-101 AND c1<=101 ORDER BY c2 LIMIT 2;
SELECT * FROM t1;
c1 c2 c3
0 -102 5
0 -110 14
0 -111 15
0 -128 0
0 -8388608 6
109 -8388608 12
110 -104 7
110 -105 8
120 NULL 3
120 NULL 4
16777215 8388607 10
16777215 8388607 11
16777215 8388607 9
2 1 1
255 127 13
3 1 2
CREATE TABLE t2(c1 MEDIUMINT SIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, c2 MEDIUMINT UNSIGNED NULL, c3 INT);
INSERT INTO t2(c1) VALUES(1),(2),(3),(4),(5);
UPDATE t2 SET c1=1 WHERE c1=3;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
UPDATE IGNORE t2 SET c1=1 WHERE c1>=3;
Warnings:
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
SELECT c1 FROM t2;
c1
1
2
3
4
5
TRUNCATE TABLE t1;
ALTER TABLE t1 CHANGE c1 c1 MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT, ADD PRIMARY KEY(c1);
INSERT INTO t1 VALUES(1,2,3),(4,5,6),(7,8,9),(10,11,12);
TRUNCATE TABLE t2;
INSERT INTO t2 VALUES(1,2,3),(4,5,6),(7,8,9),(10,11,12);
INSERT INTO t1(c2,c3) VALUES(13,14);
SELECT c1 FROM t1 WHERE c2=13;
c1
11
INSERT INTO t2(c2,c3) VALUES(13,14);
SELECT c1 FROM t2 WHERE c2=13;
c1
11
UPDATE t1 SET c1=16777215,c2=8388607 WHERE c2=13;
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
16777215 8388607
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t2 SET c1=0,c2=-8388608 WHERE c2=2;
Warnings:
Warning 1264 Out of range value for column 'c2' at row 1
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
16777215 8388607
UPDATE t2 SET c2=0 WHERE c2=5;
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
16777215 8388607
UPDATE t2 SET c1=8388607,c2=16777215 WHERE c2=13;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
8388607 16777215
UPDATE t2 SET c1=-8388608,c2=0 WHERE c2=2;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
8388607 16777215
UPDATE t2 SET c1=0,c2=0 WHERE c2=5;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
8388607 16777215
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
CREATE TABLE mt1 (c1 MEDIUMINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
CREATE TABLE mt2 (c1 MEDIUMINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
CREATE TABLE mt3 (c1 MEDIUMINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
INSERT INTO mt1 VALUES(1,1),(2,2),(3,3),(4,4),(5,5);
INSERT INTO mt2 VALUES(11,1),(12,1),(13,1),(14,2),(15,6);
INSERT INTO mt3 VALUES(21,11),(22,11),(23,13),(24,14),(25,15);
UPDATE IGNORE mt1, mt2 ,mt3 SET mt1.c2 = 30, mt2.c2 = 40, mt3.c2=50 WHERE mt1.c1=mt2.c2 AND mt2.c1=mt3.c2;
SELECT * FROM mt1;
c1 c2
1 30
2 30
3 3
4 4
5 5
SELECT * FROM mt2;
c1 c2
11 40
12 1
13 40
14 40
15 6
SELECT * FROM mt3;
c1 c2
21 50
22 50
23 50
24 50
25 15
DROP TABLE mt1,mt2,mt3;
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
ALTER TABLE t2 CHANGE c2 c2 MEDIUMINT UNSIGNED NULL, ADD KEY(c2);
INSERT INTO t1 VALUES(1,-1,1),(2,-2,2),(3,-3,3),(4,-4,4),(5,-5,5),(6,-6,6),(7,-7,7),(8,-8,8),(9,-9,9),(10,-10,10),(11,NULL,11);
INSERT INTO t2 VALUES(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(-7,7,7),(-8,8,8),(-9,9,9),(10,10,10),(-11,NULL,11),(-12,12,12);
UPDATE t1,t2 SET t1.c1=50,t1.c2=50,t2.c1=50,t2.c2=50 WHERE t2.c1=t1.c1;
SELECT * FROM t1,t2 WHERE t1.c1=50 AND t1.c2=50 AND t2.c1=50 AND t2.c2=50;
c1 c2 c3 c1 c2 c3
50 50 10 50 50 10
SELECT * FROM t1,t2 WHERE t2.c1=t1.c1;
c1 c2 c3 c1 c2 c3
50 50 10 50 50 10
ALTER TABLE t2 CHANGE c1 c1 MEDIUMINT SIGNED NOT NULL, DROP PRIMARY KEY;
ALTER TABLE t2 CHANGE c1 c1 MEDIUMINT SIGNED NOT NULL, ADD KEY(c1);
INSERT INTO t2 VALUES(-8388608,0,12),(0,255,13),(8388607,16777215,14);
UPDATE t2 SET c2=16777215 WHERE c1 <> 0 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c2 <> 0 ORDER BY c1;
c1 c2 c3
-8388608 16777215 12
-12 16777215 12
-9 9 9
-8 8 8
-7 7 7
-6 6 6
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 255 13
50 50 10
8388607 16777215 14
UPDATE t2 SET c2=16777215 WHERE c1 >= 0 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 >= 0 ORDER BY c1 DESC;
c1 c2 c3
8388607 16777215 14
50 16777215 10
0 255 13
UPDATE t2 SET c2=16777215 WHERE c1 <= -9 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 <= -9 ORDER BY c1;
c1 c2 c3
-8388608 16777215 12
-12 16777215 12
-11 NULL 11
-9 9 9
UPDATE t2 SET c2=16777215 WHERE c1 <=> -3 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 <=> -3 ORDER BY c1;
c1 c2 c3
-3 16777215 3
UPDATE t2 SET c2=16777215 WHERE c1 BETWEEN -6 AND -4 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 BETWEEN -6 AND -4 ORDER BY c1;
c1 c2 c3
-6 16777215 6
-5 16777215 5
-4 4 4
UPDATE t2 SET c2=16777215 WHERE c1 IN(-7,-8) ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 IN(-7,-8) ORDER BY c1 DESC;
c1 c2 c3
-7 16777215 7
-8 16777215 8
UPDATE t2 SET c2=16777215 WHERE c2 IS NULL ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2;
c1 c2 c3
UPDATE t2 SET c2=16777215 WHERE c1>= -8388608 AND c1 < -9 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1>= -8388608 AND c1 < -9 ORDER BY c1;
c1 c2 c3
-8388608 16777215 12
-12 16777215 12
-11 16777215 11
UPDATE t2 SET c2=16777215 WHERE c1=-2 OR c2=1;
SELECT * FROM t2 WHERE c2=16777215;
c1 c2 c3
-1 16777215 1
-11 16777215 11
-12 16777215 12
-2 16777215 2
-3 16777215 3
-5 16777215 5
-6 16777215 6
-7 16777215 7
-8 16777215 8
-8388608 16777215 12
50 16777215 10
8388607 16777215 14
SELECT * FROM t2;
c1 c2 c3
-1 16777215 1
-11 16777215 11
-12 16777215 12
-2 16777215 2
-3 16777215 3
-4 4 4
-5 16777215 5
-6 16777215 6
-7 16777215 7
-8 16777215 8
-8388608 16777215 12
-9 9 9
0 255 13
50 16777215 10
8388607 16777215 14
SELECT c2 FROM t2;
c2
16777215
16777215
16777215
16777215
16777215
16777215
16777215
16777215
16777215
16777215
16777215
16777215
255
4
9
SELECT c2 FROM t2 ORDER BY c2 DESC;
c2
16777215
16777215
16777215
16777215
16777215
16777215
16777215
16777215
16777215
16777215
16777215
16777215
255
9
4
SELECT * FROM t2 WHERE c2=16777215;
c1 c2 c3
-1 16777215 1
-11 16777215 11
-12 16777215 12
-2 16777215 2
-3 16777215 3
-5 16777215 5
-6 16777215 6
-7 16777215 7
-8 16777215 8
-8388608 16777215 12
50 16777215 10
8388607 16777215 14
SELECT * FROM t2 WHERE c2 <> 16777215 ORDER BY c2,c1;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
SELECT * FROM t2 WHERE c2 <> 16777215 ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 > 16777215 ORDER BY c2,c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c2 >= 16777215 ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-8388608 16777215 12
-12 16777215 12
SELECT * FROM t2 WHERE c2 < 16777215 ORDER BY c2,c1;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
SELECT * FROM t2 WHERE c2 <= 16777215 ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 <=> 16777215 ORDER BY c2,c1 DESC;
c1 c2 c3
8388607 16777215 14
50 16777215 10
-1 16777215 1
-2 16777215 2
-3 16777215 3
-5 16777215 5
-6 16777215 6
-7 16777215 7
-8 16777215 8
-11 16777215 11
-12 16777215 12
-8388608 16777215 12
SELECT * FROM t2 WHERE c2 <=> 16777215 ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-8388608 16777215 12
-12 16777215 12
SELECT * FROM t2 WHERE c2 BETWEEN 0 AND 16777215 ORDER BY c2,c1;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
-8388608 16777215 12
-12 16777215 12
-11 16777215 11
-8 16777215 8
-7 16777215 7
-6 16777215 6
-5 16777215 5
-3 16777215 3
-2 16777215 2
-1 16777215 1
50 16777215 10
8388607 16777215 14
SELECT * FROM t2 WHERE c2 BETWEEN 0 AND 16777215 ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 IN(0,16777215) ORDER BY c2,c1 DESC;
c1 c2 c3
8388607 16777215 14
50 16777215 10
-1 16777215 1
-2 16777215 2
-3 16777215 3
-5 16777215 5
-6 16777215 6
-7 16777215 7
-8 16777215 8
-11 16777215 11
-12 16777215 12
-8388608 16777215 12
SELECT * FROM t2 WHERE c2 IN(0,16777215) ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-8388608 16777215 12
-12 16777215 12
SELECT * FROM t2 WHERE c2 >=0 AND c2 <= 16777215 ORDER BY c2,c1 DESC;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
8388607 16777215 14
50 16777215 10
-1 16777215 1
-2 16777215 2
-3 16777215 3
-5 16777215 5
-6 16777215 6
-7 16777215 7
-8 16777215 8
-11 16777215 11
-12 16777215 12
-8388608 16777215 12
SELECT * FROM t2 WHERE c2 >=0 AND c2 <= 16777215 ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c2,c1 DESC;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
8388607 16777215 14
50 16777215 10
-1 16777215 1
-2 16777215 2
-3 16777215 3
-5 16777215 5
-6 16777215 6
-7 16777215 7
-8 16777215 8
-11 16777215 11
-12 16777215 12
-8388608 16777215 12
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2=16777215 OR c1=-4;
c1 c2 c3
-1 16777215 1
-11 16777215 11
-12 16777215 12
-2 16777215 2
-3 16777215 3
-4 4 4
-5 16777215 5
-6 16777215 6
-7 16777215 7
-8 16777215 8
-8388608 16777215 12
50 16777215 10
8388607 16777215 14
CREATE TABLE mt1 (a mediumint not null primary key, b mediumint not null, key (b));
CREATE TABLE mt2 (a mediumint not null primary key, b mediumint not null, key (b));
INSERT INTO mt1 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
INSERT INTO mt2 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
update mt1,mt2 set mt1.a=mt1.a+100;
select * from mt1;
a b
101 1
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
update mt1,mt2 set mt1.a=mt1.a+100 where mt1.a=101;
select * from mt1;
a b
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
201 1
update mt1,mt2 set mt1.b=mt1.b+10 where mt1.b=2;
select * from mt1;
a b
102 12
103 3
104 4
105 5
106 6
107 7
108 8
109 9
201 1
update mt1 straight_join mt2 set mt1.b=mt1.b+2,mt2.b=mt1.b+10 where mt1.b between 3 and 5 and mt2.a=mt1.a-100;
select * from mt1;
a b
102 12
103 5
104 6
105 7
106 6
107 7
108 8
109 9
201 1
select * from mt2;
a b
1 1
2 2
3 13
4 14
5 15
6 6
7 7
8 8
9 9
update mt1,mt2 set mt1.b=mt2.b, mt1.a=mt2.a where mt1.a=mt2.a and not exists (select * from mt2 where mt2.a > 10);
drop table mt1,mt2;
TRUNCATE TABLE t2;
INSERT INTO t2 VALUES(-128,0,1),(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(0,0,7),(1,1,8),(127,255,9);
SELECT * FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1;
c1 c2 c3
-3 3 3
127 255 9
DELETE FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1;
c1 c2 c3
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1;
c1 c2 c3
-128 0 1
-6 6 6
-5 5 5
-4 4 4
-2 2 2
-1 1 1
0 0 7
1 1 8
DELETE FROM t2 WHERE c1 >= -128 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-2 2 2
-1 1 1
0 0 7
1 1 8
SELECT * FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC;
c1 c2 c3
1 1 8
0 0 7
-1 1 1
-2 2 2
-4 4 4
-5 5 5
DELETE FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC;
c1 c2 c3
-1 1 1
-2 2 2
-4 4 4
-5 5 5
SELECT * FROM t2 WHERE c1 < 0 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-2 2 2
-1 1 1
DELETE FROM t2 WHERE c1 < 0 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 < 0 ORDER BY c1;
c1 c2 c3
-2 2 2
-1 1 1
SELECT * FROM t2 WHERE c1 > -3 ORDER BY c1 DESC;
c1 c2 c3
-1 1 1
-2 2 2
DELETE FROM t2 WHERE c1 > -3 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 > -3 ORDER BY c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c1=-3 OR c2=2;
c1 c2 c3
DELETE FROM t2 WHERE c1=-3 OR c2=2;
SELECT * FROM t2 WHERE c1=-3 OR c2=2;
c1 c2 c3
INSERT INTO t2 VALUES(-128,0,1),(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(0,0,7),(1,1,8),(2,NULL,9),(3,NULL,10),(127,255,11);
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1;
c1 c2 c3
-128 0 1
-6 6 6
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 0 7
1 1 8
2 NULL 9
3 NULL 10
127 255 11
DELETE FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 0 7
1 1 8
2 NULL 9
3 NULL 10
127 255 11
SELECT * FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
c1 c2 c3
0 0 7
-2 2 2
DELETE FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
SELECT * FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1;
c1 c2 c3
-1 1 1
1 1 8
DELETE FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-3 3 3
127 255 11
DELETE FROM t2 WHERE c2 IS NOT NULL ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c1;
c1 c2 c3
-3 3 3
127 255 11
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC;
c1 c2 c3
3 NULL 10
2 NULL 9
DELETE FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC;
c1 c2 c3
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
INSERT INTO t1 VALUES(254,127,1),(0,-128,2),(1,127,3),(2,-128,4),(3,NULL,5);
INSERT INTO t2 VALUES(127,255,1),(127,1,2),(-128,0,3),(-128,2,4),(-1,NULL,5);
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
c1 c2 c3 c1 c2 c3
1 127 3 127 1 2
1 127 3 127 255 1
2 -128 4 -128 0 3
2 -128 4 -128 2 4
254 127 1 127 1 2
254 127 1 127 255 1
255 -128 2 -128 0 3
255 -128 2 -128 2 4
255 -128 2 127 255 1
3 NULL 5 -1 NULL 5
DELETE t1,t2 FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
c1 c2 c3 c1 c2 c3
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
INSERT INTO t1 VALUES(254,127,1),(0,-128,2),(1,127,3),(2,-128,4),(3,NULL,5);
INSERT INTO t2 VALUES(127,255,1),(127,1,2),(-128,0,3),(-128,2,4),(-1,NULL,5);
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2;
c1 c2 c3 c1 c2 c3
1 127 3 127 1 2
1 127 3 127 255 1
2 -128 4 -128 0 3
2 -128 4 -128 2 4
254 127 1 127 1 2
254 127 1 127 255 1
255 -128 2 -128 0 3
255 -128 2 -128 2 4
DELETE FROM a1, a2 USING t1 AS a1 INNER JOIN t2 AS a2 WHERE a2.c1=a1.c2;
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2;
c1 c2 c3 c1 c2 c3
DELETE FROM t1,t2 using t1,t2 where t1.c1=(select c1 from t1);
ERROR HY000: You can't specify target table 't1' for update in FROM clause
CREATE TABLE t3(c1 MEDIUMINT UNSIGNED NOT NULL PRIMARY KEY, c2 MEDIUMINT SIGNED NULL, c3 INT);
CREATE TABLE t4(c1 MEDIUMINT UNSIGNED, c2 INT);
INSERT INTO t3 VALUES(200,126,1),(250,-127,2);
INSERT INTO t4 VALUES(200,1),(150,3);
SELECT * FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
c1 c2 c3 c1 c2
200 126 1 200 1
DELETE t3.*,t4.* FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
SELECT * FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
c1 c2 c3 c1 c2
DROP TABLE t1,t2,t3,t4;
CREATE TABLE t1(c1 BIGINT UNSIGNED NOT NULL, c2 BIGINT SIGNED NULL, c3 INT, INDEX idx2(c2));
INSERT INTO t1 VALUES(0,-128,0),(1,1,1),(2,2,2),(0,\N,3),(101,-101,4),(102,-102,5),(103,-103,6),(104,-104,7),(105,-105,8);
Warnings:
Warning 1287 '\N' is deprecated and will be removed in a future release. Please use NULL instead
SELECT * FROM t1;
c1 c2 c3
0 -128 0
0 NULL 3
1 1 1
101 -101 4
102 -102 5
103 -103 6
104 -104 7
105 -105 8
2 2 2
UPDATE t1 SET c1=110 WHERE c2 >-128 ORDER BY c2 LIMIT 2;
SELECT * FROM t1 WHERE c1=110;
c1 c2 c3
110 -104 7
110 -105 8
UPDATE t1 SET c1=c1+1,c2=NULL WHERE c1=101;
SELECT * FROM t1 WHERE c1=102 AND c2 IS NULL;
c1 c2 c3
102 NULL 4
UPDATE t1 SET c1=120 WHERE c2 IS NULL;
SELECT c1,c2 FROM t1 WHERE c1=120;
c1 c2
120 NULL
120 NULL
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=-120 WHERE c2=-102;
Warnings:
Warning 1264 Out of range value for column 'c1' at row 1
SELECT c1,c2 FROM t1 WHERE c2=-102;
c1 c2
0 -102
UPDATE t1 SET c1=0,c2=-9223372036854775808 WHERE c1=103 AND c2=-103;
SELECT * FROM t1 WHERE c1=0 AND c2=-9223372036854775808;
c1 c2 c3
0 -9223372036854775808 6
UPDATE t1 SET c1=18446744073709551615,c2=9223372036854775807 WHERE c1=104 OR c2=105;
SELECT * FROM t1 WHERE c1=18446744073709551615 AND c2=9223372036854775807;
c1 c2 c3
UPDATE t1 SET c2=0 WHERE c1 IN (1,2);
SELECT * FROM t1 WHERE c2=0;
c1 c2 c3
1 0 1
2 0 2
INSERT INTO t1 VALUES(106,-106,9),(107,-107,10),(108,-108,11),(109,-109,12),(255,127,13);
UPDATE t1 SET c1=18446744073709551616,c2=9223372036854775808 WHERE c2 BETWEEN -108 AND -106;
Warnings:
Warning 1264 Out of range value for column 'c1' at row 1
Warning 1264 Out of range value for column 'c2' at row 1
Warning 1264 Out of range value for column 'c1' at row 2
Warning 1264 Out of range value for column 'c2' at row 2
Warning 1264 Out of range value for column 'c1' at row 3
Warning 1264 Out of range value for column 'c2' at row 3
SELECT COUNT(*) FROM t1 WHERE c1=18446744073709551616 AND c2=9223372036854775808 /* no rows */;
COUNT(*)
0
SELECT * FROM t1 WHERE c1=18446744073709551615 AND c2=9223372036854775807;
c1 c2 c3
18446744073709551615 9223372036854775807 10
18446744073709551615 9223372036854775807 11
18446744073709551615 9223372036854775807 9
UPDATE t1 SET c2=-9223372036854775809 WHERE c1=109 ORDER BY c1;
Warnings:
Warning 1264 Out of range value for column 'c2' at row 13
SELECT c1,c2 FROM t1 WHERE c1=109;
c1 c2
109 -9223372036854775808
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
INSERT INTO t1 VALUES(110,-110,14),(111,-111,15);
SET SQL_MODE=STRICT_ALL_TABLES;
UPDATE t1 SET c1=NULL WHERE c2=-110;
ERROR 23000: Column 'c1' cannot be null
UPDATE IGNORE t1 SET c1=NULL WHERE c2=-110 /* updates to default value 0 */;
Warnings:
Warning 1048 Column 'c1' cannot be null
SELECT c1,c2 FROM t1 WHERE c2=-110;
c1 c2
0 -110
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=NULL WHERE c2=-111 /* updates to default value 0 */;
Warnings:
Warning 1048 Column 'c1' cannot be null
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
SELECT * FROM t1 WHERE c1=0;
c1 c2 c3
0 -102 5
0 -110 14
0 -111 15
0 -128 0
0 -9223372036854775808 6
SELECT * FROM t1 WHERE c2>=-101 AND c1<=101 ORDER BY c2;
c1 c2 c3
1 0 1
2 0 2
UPDATE t1 SET c1=c1+1,c2=c2+1 WHERE c2>=-101 AND c1<=101 ORDER BY c2 LIMIT 2;
SELECT * FROM t1;
c1 c2 c3
0 -102 5
0 -110 14
0 -111 15
0 -128 0
0 -9223372036854775808 6
109 -9223372036854775808 12
110 -104 7
110 -105 8
120 NULL 3
120 NULL 4
18446744073709551615 9223372036854775807 10
18446744073709551615 9223372036854775807 11
18446744073709551615 9223372036854775807 9
2 1 1
255 127 13
3 1 2
CREATE TABLE t2(c1 BIGINT SIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, c2 BIGINT UNSIGNED NULL, c3 INT);
INSERT INTO t2(c1) VALUES(1),(2),(3),(4),(5);
UPDATE t2 SET c1=1 WHERE c1=3;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
UPDATE IGNORE t2 SET c1=1 WHERE c1>=3;
Warnings:
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
SELECT c1 FROM t2;
c1
1
2
3
4
5
TRUNCATE TABLE t1;
ALTER TABLE t1 CHANGE c1 c1 BIGINT UNSIGNED NOT NULL AUTO_INCREMENT, ADD PRIMARY KEY(c1);
INSERT INTO t1 VALUES(1,2,3),(4,5,6),(7,8,9),(10,11,12);
TRUNCATE TABLE t2;
INSERT INTO t2 VALUES(1,2,3),(4,5,6),(7,8,9),(10,11,12);
INSERT INTO t1(c2,c3) VALUES(13,14);
SELECT c1 FROM t1 WHERE c2=13;
c1
11
INSERT INTO t2(c2,c3) VALUES(13,14);
SELECT c1 FROM t2 WHERE c2=13;
c1
11
SET SQL_MODE='NO_ENGINE_SUBSTITUTION';
UPDATE t1 SET c1=18446744073709551615,c2=9223372036854775807 WHERE c2=13;
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
18446744073709551615 9223372036854775807
UPDATE t2 SET c1=0,c2=-9223372036854775808 WHERE c2=2;
Warnings:
Warning 1264 Out of range value for column 'c2' at row 1
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
18446744073709551615 9223372036854775807
UPDATE t2 SET c2=0 WHERE c2=5;
SELECT c1,c2 FROM t1 ORDER BY c1;
c1 c2
1 2
4 5
7 8
10 11
18446744073709551615 9223372036854775807
UPDATE t2 SET c1=9223372036854775807,c2=18446744073709551615 WHERE c2=13;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
9223372036854775807 18446744073709551615
UPDATE t2 SET c1=-9223372036854775808,c2=0 WHERE c2=2;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
9223372036854775807 18446744073709551615
UPDATE t2 SET c1=0,c2=0 WHERE c2=5;
SELECT c1,c2 FROM t2 ORDER BY c1;
c1 c2
0 0
4 0
7 8
10 11
9223372036854775807 18446744073709551615
SET SQL_MODE=DEFAULT;
Warnings:
Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
CREATE TABLE mt1 (c1 BIGINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
CREATE TABLE mt2 (c1 BIGINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
CREATE TABLE mt3 (c1 BIGINT NOT NULL PRIMARY KEY, c2 INTEGER, KEY(c2));
INSERT INTO mt1 VALUES(1,1),(2,2),(3,3),(4,4),(5,5);
INSERT INTO mt2 VALUES(11,1),(12,1),(13,1),(14,2),(15,6);
INSERT INTO mt3 VALUES(21,11),(22,11),(23,13),(24,14),(25,15);
UPDATE IGNORE mt1, mt2 ,mt3 SET mt1.c2 = 30, mt2.c2 = 40, mt3.c2=50 WHERE mt1.c1=mt2.c2 AND mt2.c1=mt3.c2;
SELECT * FROM mt1;
c1 c2
1 30
2 30
3 3
4 4
5 5
SELECT * FROM mt2;
c1 c2
11 40
12 1
13 40
14 40
15 6
SELECT * FROM mt3;
c1 c2
21 50
22 50
23 50
24 50
25 15
DROP TABLE mt1,mt2,mt3;
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
ALTER TABLE t2 CHANGE c2 c2 BIGINT UNSIGNED NULL, ADD KEY(c2);
INSERT INTO t1 VALUES(1,-1,1),(2,-2,2),(3,-3,3),(4,-4,4),(5,-5,5),(6,-6,6),(7,-7,7),(8,-8,8),(9,-9,9),(10,-10,10),(11,NULL,11);
INSERT INTO t2 VALUES(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(-7,7,7),(-8,8,8),(-9,9,9),(10,10,10),(-11,NULL,11),(-12,12,12);
UPDATE t1,t2 SET t1.c1=50,t1.c2=50,t2.c1=50,t2.c2=50 WHERE t2.c1=t1.c1;
SELECT * FROM t1,t2 WHERE t1.c1=50 AND t1.c2=50 AND t2.c1=50 AND t2.c2=50;
c1 c2 c3 c1 c2 c3
50 50 10 50 50 10
SELECT * FROM t1,t2 WHERE t2.c1=t1.c1;
c1 c2 c3 c1 c2 c3
50 50 10 50 50 10
ALTER TABLE t2 CHANGE c1 c1 BIGINT SIGNED NOT NULL, DROP PRIMARY KEY;
ALTER TABLE t2 CHANGE c1 c1 BIGINT SIGNED NOT NULL, ADD KEY(c1);
INSERT INTO t2 VALUES(-9223372036854775808,0,12),(0,255,13),(9223372036854775807,18446744073709551615,14);
UPDATE t2 SET c2=18446744073709551615 WHERE c1 <> 0 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c2 <> 0 ORDER BY c1;
c1 c2 c3
-9223372036854775808 18446744073709551615 12
-12 18446744073709551615 12
-9 9 9
-8 8 8
-7 7 7
-6 6 6
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 255 13
50 50 10
9223372036854775807 18446744073709551615 14
UPDATE t2 SET c2=18446744073709551615 WHERE c1 >= 0 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 >= 0 ORDER BY c1 DESC;
c1 c2 c3
9223372036854775807 18446744073709551615 14
50 18446744073709551615 10
0 255 13
UPDATE t2 SET c2=18446744073709551615 WHERE c1 <= -9 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 <= -9 ORDER BY c1;
c1 c2 c3
-9223372036854775808 18446744073709551615 12
-12 18446744073709551615 12
-11 NULL 11
-9 9 9
UPDATE t2 SET c2=18446744073709551615 WHERE c1 <=> -3 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 <=> -3 ORDER BY c1;
c1 c2 c3
-3 18446744073709551615 3
UPDATE t2 SET c2=18446744073709551615 WHERE c1 BETWEEN -6 AND -4 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 BETWEEN -6 AND -4 ORDER BY c1;
c1 c2 c3
-6 18446744073709551615 6
-5 18446744073709551615 5
-4 4 4
UPDATE t2 SET c2=18446744073709551615 WHERE c1 IN(-7,-8) ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 IN(-7,-8) ORDER BY c1 DESC;
c1 c2 c3
-7 18446744073709551615 7
-8 18446744073709551615 8
UPDATE t2 SET c2=18446744073709551615 WHERE c2 IS NULL ORDER BY c2 LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2;
c1 c2 c3
UPDATE t2 SET c2=18446744073709551615 WHERE c1>= -9223372036854775808 AND c1 < -9 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1>= -9223372036854775808 AND c1 < -9 ORDER BY c1;
c1 c2 c3
-9223372036854775808 18446744073709551615 12
-12 18446744073709551615 12
-11 18446744073709551615 11
UPDATE t2 SET c2=18446744073709551615 WHERE c1=-2 OR c2=1;
SELECT * FROM t2 WHERE c2=18446744073709551615;
c1 c2 c3
-1 18446744073709551615 1
-11 18446744073709551615 11
-12 18446744073709551615 12
-2 18446744073709551615 2
-3 18446744073709551615 3
-5 18446744073709551615 5
-6 18446744073709551615 6
-7 18446744073709551615 7
-8 18446744073709551615 8
-9223372036854775808 18446744073709551615 12
50 18446744073709551615 10
9223372036854775807 18446744073709551615 14
SELECT * FROM t2;
c1 c2 c3
-1 18446744073709551615 1
-11 18446744073709551615 11
-12 18446744073709551615 12
-2 18446744073709551615 2
-3 18446744073709551615 3
-4 4 4
-5 18446744073709551615 5
-6 18446744073709551615 6
-7 18446744073709551615 7
-8 18446744073709551615 8
-9 9 9
-9223372036854775808 18446744073709551615 12
0 255 13
50 18446744073709551615 10
9223372036854775807 18446744073709551615 14
SELECT c2 FROM t2;
c2
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
255
4
9
SELECT c2 FROM t2 ORDER BY c2 DESC;
c2
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
18446744073709551615
255
9
4
SELECT * FROM t2 WHERE c2=18446744073709551615;
c1 c2 c3
-1 18446744073709551615 1
-11 18446744073709551615 11
-12 18446744073709551615 12
-2 18446744073709551615 2
-3 18446744073709551615 3
-5 18446744073709551615 5
-6 18446744073709551615 6
-7 18446744073709551615 7
-8 18446744073709551615 8
-9223372036854775808 18446744073709551615 12
50 18446744073709551615 10
9223372036854775807 18446744073709551615 14
SELECT * FROM t2 WHERE c2 <> 18446744073709551615 ORDER BY c2,c1;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
SELECT * FROM t2 WHERE c2 <> 18446744073709551615 ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 > 18446744073709551615 ORDER BY c2,c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c2 >= 18446744073709551615 ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-9223372036854775808 18446744073709551615 12
-12 18446744073709551615 12
SELECT * FROM t2 WHERE c2 < 18446744073709551615 ORDER BY c2,c1;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
SELECT * FROM t2 WHERE c2 <= 18446744073709551615 ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 <=> 18446744073709551615 ORDER BY c2,c1 DESC;
c1 c2 c3
9223372036854775807 18446744073709551615 14
50 18446744073709551615 10
-1 18446744073709551615 1
-2 18446744073709551615 2
-3 18446744073709551615 3
-5 18446744073709551615 5
-6 18446744073709551615 6
-7 18446744073709551615 7
-8 18446744073709551615 8
-11 18446744073709551615 11
-12 18446744073709551615 12
-9223372036854775808 18446744073709551615 12
SELECT * FROM t2 WHERE c2 <=> 18446744073709551615 ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-9223372036854775808 18446744073709551615 12
-12 18446744073709551615 12
SELECT * FROM t2 WHERE c2 >= 0 AND c2 <= 18446744073709551615 ORDER BY c2,c1;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
-9223372036854775808 18446744073709551615 12
-12 18446744073709551615 12
-11 18446744073709551615 11
-8 18446744073709551615 8
-7 18446744073709551615 7
-6 18446744073709551615 6
-5 18446744073709551615 5
-3 18446744073709551615 3
-2 18446744073709551615 2
-1 18446744073709551615 1
50 18446744073709551615 10
9223372036854775807 18446744073709551615 14
SELECT * FROM t2 WHERE c2 >= 0 AND c2 <= 18446744073709551615 ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 BETWEEN 0 AND 18446744073709551615 ORDER BY c2,c1;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
-9223372036854775808 18446744073709551615 12
-12 18446744073709551615 12
-11 18446744073709551615 11
-8 18446744073709551615 8
-7 18446744073709551615 7
-6 18446744073709551615 6
-5 18446744073709551615 5
-3 18446744073709551615 3
-2 18446744073709551615 2
-1 18446744073709551615 1
50 18446744073709551615 10
9223372036854775807 18446744073709551615 14
SELECT * FROM t2 WHERE c2 BETWEEN 0 AND 18446744073709551615 ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 IN(0,18446744073709551615) ORDER BY c2,c1 DESC;
c1 c2 c3
9223372036854775807 18446744073709551615 14
50 18446744073709551615 10
-1 18446744073709551615 1
-2 18446744073709551615 2
-3 18446744073709551615 3
-5 18446744073709551615 5
-6 18446744073709551615 6
-7 18446744073709551615 7
-8 18446744073709551615 8
-11 18446744073709551615 11
-12 18446744073709551615 12
-9223372036854775808 18446744073709551615 12
SELECT * FROM t2 WHERE c2 IN(0,18446744073709551615) ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-9223372036854775808 18446744073709551615 12
-12 18446744073709551615 12
SELECT * FROM t2 WHERE c2 >=0 AND c2 <= 18446744073709551615 ORDER BY c2,c1 DESC;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
9223372036854775807 18446744073709551615 14
50 18446744073709551615 10
-1 18446744073709551615 1
-2 18446744073709551615 2
-3 18446744073709551615 3
-5 18446744073709551615 5
-6 18446744073709551615 6
-7 18446744073709551615 7
-8 18446744073709551615 8
-11 18446744073709551615 11
-12 18446744073709551615 12
-9223372036854775808 18446744073709551615 12
SELECT * FROM t2 WHERE c2 >=0 AND c2 <= 18446744073709551615 ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC LIMIT 2;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c2,c1 DESC;
c1 c2 c3
-4 4 4
-9 9 9
0 255 13
9223372036854775807 18446744073709551615 14
50 18446744073709551615 10
-1 18446744073709551615 1
-2 18446744073709551615 2
-3 18446744073709551615 3
-5 18446744073709551615 5
-6 18446744073709551615 6
-7 18446744073709551615 7
-8 18446744073709551615 8
-11 18446744073709551615 11
-12 18446744073709551615 12
-9223372036854775808 18446744073709551615 12
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c2,c1 LIMIT 2;
c1 c2 c3
-4 4 4
-9 9 9
SELECT * FROM t2 WHERE c2=18446744073709551615 OR c1=-4;
c1 c2 c3
-1 18446744073709551615 1
-11 18446744073709551615 11
-12 18446744073709551615 12
-2 18446744073709551615 2
-3 18446744073709551615 3
-4 4 4
-5 18446744073709551615 5
-6 18446744073709551615 6
-7 18446744073709551615 7
-8 18446744073709551615 8
-9223372036854775808 18446744073709551615 12
50 18446744073709551615 10
9223372036854775807 18446744073709551615 14
CREATE TABLE mt1 (a bigint not null primary key, b bigint not null, key (b));
CREATE TABLE mt2 (a bigint not null primary key, b bigint not null, key (b));
INSERT INTO mt1 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
INSERT INTO mt2 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
update mt1,mt2 set mt1.a=mt1.a+100;
select * from mt1;
a b
101 1
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
update mt1,mt2 set mt1.a=mt1.a+100 where mt1.a=101;
select * from mt1;
a b
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
201 1
update mt1,mt2 set mt1.b=mt1.b+10 where mt1.b=2;
select * from mt1;
a b
102 12
103 3
104 4
105 5
106 6
107 7
108 8
109 9
201 1
update mt1 straight_join mt2 set mt1.b=mt1.b+2,mt2.b=mt1.b+10 where mt1.b between 3 and 5 and mt2.a=mt1.a-100;
select * from mt1;
a b
102 12
103 5
104 6
105 7
106 6
107 7
108 8
109 9
201 1
select * from mt2;
a b
1 1
2 2
3 13
4 14
5 15
6 6
7 7
8 8
9 9
update mt1,mt2 set mt1.b=mt2.b, mt1.a=mt2.a where mt1.a=mt2.a and not exists (select * from mt2 where mt2.a > 10);
drop table mt1,mt2;
TRUNCATE TABLE t2;
INSERT INTO t2 VALUES(-128,0,1),(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(0,0,7),(1,1,8),(127,255,9);
SELECT * FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1;
c1 c2 c3
-3 3 3
127 255 9
DELETE FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1=127 OR c2=3 ORDER BY c1;
c1 c2 c3
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1;
c1 c2 c3
-128 0 1
-6 6 6
-5 5 5
-4 4 4
-2 2 2
-1 1 1
0 0 7
1 1 8
DELETE FROM t2 WHERE c1 >= -128 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 >= -128 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-2 2 2
-1 1 1
0 0 7
1 1 8
SELECT * FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC;
c1 c2 c3
1 1 8
0 0 7
-1 1 1
-2 2 2
-4 4 4
-5 5 5
DELETE FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 <= 127 ORDER BY c1 DESC;
c1 c2 c3
-1 1 1
-2 2 2
-4 4 4
-5 5 5
SELECT * FROM t2 WHERE c1 < 0 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-2 2 2
-1 1 1
DELETE FROM t2 WHERE c1 < 0 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 < 0 ORDER BY c1;
c1 c2 c3
-2 2 2
-1 1 1
SELECT * FROM t2 WHERE c1 > -3 ORDER BY c1 DESC;
c1 c2 c3
-1 1 1
-2 2 2
DELETE FROM t2 WHERE c1 > -3 ORDER BY c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c1 > -3 ORDER BY c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c1=-3 OR c2=2;
c1 c2 c3
DELETE FROM t2 WHERE c1=-3 OR c2=2;
SELECT * FROM t2 WHERE c1=-3 OR c2=2;
c1 c2 c3
INSERT INTO t2 VALUES(-128,0,1),(-1,1,1),(-2,2,2),(-3,3,3),(-4,4,4),(-5,5,5),(-6,6,6),(0,0,7),(1,1,8),(2,NULL,9),(3,NULL,10),(127,255,11);
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1;
c1 c2 c3
-128 0 1
-6 6 6
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 0 7
1 1 8
2 NULL 9
3 NULL 10
127 255 11
DELETE FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 BETWEEN -128 AND 127 ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-3 3 3
-2 2 2
-1 1 1
0 0 7
1 1 8
2 NULL 9
3 NULL 10
127 255 11
SELECT * FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
c1 c2 c3
0 0 7
-2 2 2
DELETE FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
SELECT * FROM t2 WHERE c1 IN(-2,0) ORDER BY c1 DESC;
c1 c2 c3
SELECT * FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1;
c1 c2 c3
-1 1 1
1 1 8
DELETE FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c1 >= -6 AND c2 < 3 ORDER BY c1;
c1 c2 c3
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c1;
c1 c2 c3
-5 5 5
-4 4 4
-3 3 3
127 255 11
DELETE FROM t2 WHERE c2 IS NOT NULL ORDER BY c1 LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NOT NULL ORDER BY c1;
c1 c2 c3
-3 3 3
127 255 11
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC;
c1 c2 c3
3 NULL 10
2 NULL 9
DELETE FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC LIMIT 2;
SELECT * FROM t2 WHERE c2 IS NULL ORDER BY c2,c1 DESC;
c1 c2 c3
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
INSERT INTO t1 VALUES(254,127,1),(0,-128,2),(1,127,3),(2,-128,4),(3,NULL,5);
INSERT INTO t2 VALUES(127,255,1),(127,1,2),(-128,0,3),(-128,2,4),(-1,NULL,5);
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
c1 c2 c3 c1 c2 c3
1 127 3 127 1 2
1 127 3 127 255 1
2 -128 4 -128 0 3
2 -128 4 -128 2 4
254 127 1 127 1 2
254 127 1 127 255 1
255 -128 2 -128 0 3
255 -128 2 -128 2 4
255 -128 2 127 255 1
3 NULL 5 -1 NULL 5
DELETE t1,t2 FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2 OR t2.c2=t1.c1 OR t2.c2<=>t1.c2;
c1 c2 c3 c1 c2 c3
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
INSERT INTO t1 VALUES(254,127,1),(0,-128,2),(1,127,3),(2,-128,4),(3,NULL,5);
INSERT INTO t2 VALUES(127,255,1),(127,1,2),(-128,0,3),(-128,2,4),(-1,NULL,5);
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2;
c1 c2 c3 c1 c2 c3
1 127 3 127 1 2
1 127 3 127 255 1
2 -128 4 -128 0 3
2 -128 4 -128 2 4
254 127 1 127 1 2
254 127 1 127 255 1
255 -128 2 -128 0 3
255 -128 2 -128 2 4
DELETE FROM a1, a2 USING t1 AS a1 INNER JOIN t2 AS a2 WHERE a2.c1=a1.c2;
SELECT * FROM t1,t2 WHERE t2.c1=t1.c2;
c1 c2 c3 c1 c2 c3
DELETE FROM t1,t2 using t1,t2 where t1.c1=(select c1 from t1);
ERROR HY000: You can't specify target table 't1' for update in FROM clause
CREATE TABLE t3(c1 BIGINT UNSIGNED NOT NULL PRIMARY KEY, c2 BIGINT SIGNED NULL, c3 INT);
CREATE TABLE t4(c1 BIGINT UNSIGNED, c2 INT);
INSERT INTO t3 VALUES(200,126,1),(250,-127,2);
INSERT INTO t4 VALUES(200,1),(150,3);
SELECT * FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
c1 c2 c3 c1 c2
200 126 1 200 1
DELETE t3.*,t4.* FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
SELECT * FROM t3,t4 WHERE t3.c1=t4.c1 AND t3.c3=t4.c2;
c1 c2 c3 c1 c2
DROP TABLE t1,t2,t3,t4;