CREATE TABLE `gfs` (
`localidad` varchar(20),
`fecha` datetime,
`pp` float(8,4) NOT NULL default '0.0000',
`temp` float(8,4) NOT NULL default '0.0000',
PRIMARY KEY (`localidad`,`fecha`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
一個MySQL表,當我嘗試更新與此
REPLACE INTO gfs(localidad,fecha,pp) VALUES ("some_place","2012-08-05 02:00","1.6")
先前值的字段連接臨時丟失。爲什麼?