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DROP TABLE IF EXISTS t1, t2;
CREATE TABLE t1 (a <INT_COLUMN>, c <CHAR_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
INSERT INTO t1 (a,c) VALUES (1,'a'),(5,'z');
ALTER TABLE t1 ADD COLUMN b <INT_COLUMN>;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`c` char(8) DEFAULT NULL,
`b` int(11) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 ALTER COLUMN a SET DEFAULT '0';
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT 0,
`c` char(8) DEFAULT NULL,
`b` int(11) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 ALTER a DROP DEFAULT;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11),
`c` char(8) DEFAULT NULL,
`b` int(11) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 CHANGE COLUMN b b1 <CHAR_COLUMN> FIRST;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`b1` char(8) DEFAULT NULL,
`a` int(11),
`c` char(8) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 CHANGE b1 b <INT_COLUMN> AFTER c;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11),
`c` char(8) DEFAULT NULL,
`b` int(11) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 CHANGE b b <CHAR_COLUMN>;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11),
`c` char(8) DEFAULT NULL,
`b` char(8) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 MODIFY COLUMN b <INT_COLUMN>;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11),
`c` char(8) DEFAULT NULL,
`b` int(11) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 MODIFY COLUMN b <CHAR_COLUMN> FIRST;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`b` char(8) DEFAULT NULL,
`a` int(11),
`c` char(8) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 MODIFY COLUMN b <INT_COLUMN> AFTER a;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11),
`b` int(11) DEFAULT NULL,
`c` char(8) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN b;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11),
`c` char(8) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 RENAME TO t2;
SHOW CREATE TABLE t1;
ERROR 42S02: Table 'test.t1' doesn't exist
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` int(11),
`c` char(8) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
DROP TABLE t2;
CREATE TABLE t1 (a <INT_COLUMN>, b <INT_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
INSERT INTO t1 (a,b) VALUES (1,5),(2,2),(4,3);
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
ALTER TABLE t1 ORDER BY b ASC, a DESC;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1
SELECT a,b FROM t1;
a b
2 2
4 3
1 5
DROP TABLE t1;
CREATE TABLE t1 (a <INT_COLUMN>, b <CHAR_COLUMN>, c <CHAR_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS> CHARACTER SET latin1 COLLATE latin1_general_cs;
INSERT INTO t1 (a,b,c) VALUES (5,'z','t');
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` char(8) COLLATE latin1_general_cs DEFAULT NULL,
`c` char(8) COLLATE latin1_general_cs DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1 COLLATE=latin1_general_cs
ALTER TABLE t1 CONVERT TO CHARACTER SET utf8;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` char(8) DEFAULT NULL,
`c` char(8) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=utf8
ALTER TABLE t1 DEFAULT CHARACTER SET = latin1 COLLATE latin1_general_ci;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` char(8) CHARACTER SET utf8 DEFAULT NULL,
`c` char(8) CHARACTER SET utf8 DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci
ALTER TABLE t1 FORCE;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` char(8) CHARACTER SET utf8 DEFAULT NULL,
`c` char(8) CHARACTER SET utf8 DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci
DROP TABLE t1;
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