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CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) Engine=InnoDB;
INSERT INTO t1 VALUES (1);
TRUNCATE TABLE t1;
SELECT COUNT(*) = 0 FROM t1;
COUNT(*) = 0
1
SELECT COUNT(*) = 0 FROM t1;
COUNT(*) = 0
1
CREATE TABLE t2 (f1 VARCHAR(255)) Engine=InnoDB;
INSERT INTO t2 VALUES ('abc');
TRUNCATE TABLE t2;
SELECT COUNT(*) = 0 FROM t2;
COUNT(*) = 0
1
CREATE TABLE t3 (f1 INTEGER AUTO_INCREMENT PRIMARY KEY) Engine=InnoDB;
INSERT INTO t3 VALUES (DEFAULT),(DEFAULT),(DEFAULT),(DEFAULT),(DEFAULT);
CREATE TABLE t4 (f1 INTEGER AUTO_INCREMENT PRIMARY KEY) Engine=InnoDB AUTO_INCREMENT=1234;
INSERT INTO t4 VALUES (DEFAULT),(DEFAULT),(DEFAULT),(DEFAULT),(DEFAULT);
TRUNCATE TABLE t3;
TRUNCATE TABLE t4;
SELECT AUTO_INCREMENT = 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME IN ('t3', 't4');
AUTO_INCREMENT = 1
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DROP TABLE t1;
DROP TABLE t2;
DROP TABLE t3;
DROP TABLE t4;
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