config root man

CREATE TABLE t1 (
a int PRIMARY KEY,
b varchar(255)
) ENGINE = NDB;
INSERT INTO t1 VALUES (1, "MySQL Server with NDB");
INSERT INTO t1 (a, b) VALUES (11, "Barrier effect");
INSERT INTO t1 (a, b) VALUES
(12, "The third row"),
(37, "And of course number 37");
SELECT * FROM t1 WHERE a = 1;
a	b
1	MySQL Server with NDB
UPDATE t1 SET b = CONCAT(b, " test") WHERE a = 1;
SELECT * FROM t1 WHERE a = 1;
a	b
1	MySQL Server with NDB test
REPLACE t1 (a, b) VALUES (12, "Another layer");
SELECT * FROM t1 WHERE a = 12 ORDER BY a;
a	b
12	Another layer
DELETE FROM t1 WHERE a = 11;
SELECT COUNT(*) FROM t1;
COUNT(*)
3
SELECT b FROM t1 WHERE b LIKE "MySQL%";
b
MySQL Server with NDB test
DELETE FROM t1 ORDER BY b DESC;
DROP TABLE t1;