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HomeDatabaseMysql TutorialMySQL5.6时间类型timestamp和datetime有了重大改变

在MySQL5.5里(或更老的版本MySQL5.1)timestamp类型一个表里只允许一列字段拥有自动插入时间和自动更新时间、或只允许一列字段有自动插入时间,网站空间,另一列字段不能有自动更新时间。

但从MySQL5.6里,打翻了这一传统理念,香港服务器,香港虚拟主机,以上条件均可以出现,并且datetime类型也拥有了timestamp类型的功能。

相关mysql视频教程推荐:《mysql教程

以下是演示:

这是MySQL5.5的(timestamp类型一个表里只允许一列字段拥有自动插入时间和自动更新时间):

这是MySQL5.6的(timestamp类型一个表里可以有多列字段拥有自动插入时间和自动更新时间):

这是MySQL5.5的(只允许一列字段有自动插入时间,另一列字段不能有自动更新时间)

这是MySQL5.6的(一列字段有自动插入时间,另一列字段也能有自动更新时间)

MySQL5.6(datetime类型也拥有了timestamp类型的功能)

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