我的mysql表中有一个主键,它由三列组成.
CREATE TABLE IF NOT EXISTS `bb_bulletin` (
`OfficeCode` int(5) NOT NULL,
`IssuerId` int(11) NOT NULL,
`BulletinDtm` datetime NOT NULL,
`CategoryCode` varchar(4) NOT NULL,
`Title` varchar(255) NOT NULL,
`Content` text NOT NULL,
PRIMARY KEY (`OfficeCode`,`IssuerId`,`BulletinDtm`),
UNIQUE KEY `U_IssuerId` (`IssuerId`,`OfficeCode`,`BulletinDtm`),
UNIQUE KEY `U_CategoryCode` (`CategoryCode`,`OfficeCode`,`IssuerId`,`BulletinDtm`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
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是否有一种速记方法来为主键的给定值选择记录.
我试过了.
SELECT * FROM `bb_bulletin` WHERE PRIMARY = '20001-1-2011-01-07 14:04:40'
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而不是长手的做法,
SELECT * From bb_bulletin WHERE OfficeCode = 20001 AND IssuerId = 1 AND BulletinDtm = 2011-01-07 14:04:40
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在表中处理php和复合键时的标准是什么.注意:我不想在表中添加自动增量键来解决这个问题.如果不可能,那么我将在我的网址中传递三个约束.