一个关于MYSQL datetime default value的解决办法的讨论:
CREATE TABLE `MyTable` (
`MyTable_ID` int UNSIGNED NOT NULL AUTO_INCREMENT ,
`MyData` varchar(10) NOT NULL ,
`CreationDate` datetime NULL ,
`UpdateDate` datetime NULL ,
PRIMARY KEY (`MyTable_ID`)
)
;
CREATE TRIGGER `MyTable_INSERT` BEFORE INSERT ON `MyTable`
FOR EACH ROW BEGIN
-- Set the creation date
SET new.CreationDate = now();
-- Set the udpate date
Set new.UpdateDate = now();
END;
CREATE TRIGGER `MyTable_UPDATE` BEFORE UPDATE ON `MyTable`
FOR EACH ROW BEGIN
-- Set the udpate date
Set new.UpdateDate = now();
END;
阅读(4396) | 评论(0) | 转发(0) |