mysql计算两个日期的时间差函数

mysql计算两个日期的时间差函数TIMESTAMPDIFF用法: 

TIMESTAMPDIFF(interval,datetime_expr1,datetime_expr2)

 

返回日期或日期时间表达式datetime_expr1 和datetime_expr2the 之间的整数差。

其结果的单位由interval 参数给出,该参数必须是以下值的其中一个： FRAC_SECOND、SECOND、 MINUTE、 HOUR、 DAY、 WEEK、 MONTH、 QUARTER或 YEAR。

 

 

 

mysql> SELECT TIMESTAMPDIFF(MONTH,'2012-10-01','2013-01-13');

        -> 3

 

mysql> SELECT TIMESTAMPDIFF(YEAR,'2002-05-01','2001-01-01');

        -> -1

 

mysql> SELECT TIMESTAMPDIFF(YEAR,'2012-05-01','2013-01-01');

        -> 0

 

mysql> SELECT TIMESTAMPDIFF(SECOND,'2013-01-01 00:00:00','2013-01-31 02:20:00');

        -> 2600400

 

 

 

 

评论

2 楼 sachxp 2014-11-20  

fortaotao 写道

有没试过FRAC_SECOND呢。一直在报错

http://dev.mysql.com/doc/refman/5.0/en/date-and-time-functions.html#function_timestampadd

Beginning with MySQL 5.0.60, it is possible to use MICROSECOND in place of FRAC_SECOND with this function, and FRAC_SECOND is deprecated. FRAC_SECOND is removed in MySQL 5.5.

1 楼 fortaotao 2014-02-13  

有没试过FRAC_SECOND呢。一直在报错