TimeStamp 設置 default值

TimeStamp設置默認值

 

如果想將一個TimeStamp字段的default值設置成 '0000-00-00 00:00:00'

 

那麼需要聲明 traditional SQL Mode 否則“zero”會被認爲不合法的類型值

 

官網說明

 

http://dev.mysql.com/doc/refman/5.0/en/timestamp.html

 

以下是原文

Note

The examples that use DEFAULT 0 will not work if the NO_ZERO_DATE SQL mode is enabled because that mode causes “zero” date values (specified as 0, '0000-00-00, or '0000-00-00 00:00:00') to be rejected. Be aware that the TRADITIONAL SQL mode includes NO_ZERO_DATE.

 

 

Demo

 

SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL';

SET SQL_MODE=@OLD_SQL_MODE;