CREATE TABLE `tA` (
`Id` int NOT NULL auto_increment,
`UserName` varchar(50) NOT NULL default ''
PRIMARY KEY (`id`),
) TYPE=MyISAM;
INSERT INTO `tA` (`Id`, `UserName`) VALUES (NULL, 'A');
INSERT INTO `tA` (`Id`, `UserName`) VALUES (NULL, 'B');
INSERT INTO `tA` (`Id`, `UserName`) VALUES (NULL, 'C');
SELECT * FROM `tA`;
`Id` int NOT NULL auto_increment,
`UserName` varchar(50) NOT NULL default ''
PRIMARY KEY (`id`),
) TYPE=MyISAM;
INSERT INTO `tA` (`Id`, `UserName`) VALUES (NULL, 'A');
INSERT INTO `tA` (`Id`, `UserName`) VALUES (NULL, 'B');
INSERT INTO `tA` (`Id`, `UserName`) VALUES (NULL, 'C');
SELECT * FROM `tA`;
`Id` int NOT NULL auto_increment,
`UserName` varchar(50) NOT NULL default '',
PRIMARY KEY (`id`)
) TYPE=MyISAM;
INSERT INTO `tA` (`Id`, `UserName`) VALUES (NULL, 'A');
INSERT INTO `tA` (`Id`, `UserName`) VALUES (NULL, 'B');
INSERT INTO `tA` (`Id`, `UserName`) VALUES (NULL, 'C');
SELECT * FROM `tA`;
哈.弄错了个逗号:")