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CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1);
ALTER TABLE t1 ADD COLUMN f2 INTEGER;
INSERT INTO t1 VALUES (2, 3);
ALTER TABLE t1 DROP COLUMN f2;
INSERT INTO t1 VALUES (4);
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
PRIMARY KEY (`f1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
SELECT COUNT(*) = 3 FROM t1;
COUNT(*) = 3
1
SELECT * FROM t1 ORDER BY f1;
f1
1
2
4
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
PRIMARY KEY (`f1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
SELECT COUNT(*) = 3 FROM t1;
COUNT(*) = 3
1
SELECT * FROM t1 ORDER BY f1;
f1
1
2
4
DROP TABLE t1;
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