select TIMESTAMPDIFF(day,‘2012-08-24‘,‘2012-08-30‘); +----------------------------------------------+ | TIMESTAMPDIFF(day,‘2012-08-24‘,‘2012-08-30‘) | +----------------------------------------------+ | 6 | +----------------------------------------------+ 1 row in set (0.00 sec)

 

mysql> select TIMESTAMPDIFF(MINUTE,‘2012-08-24 09:00:00‘,‘2012-08-30 12:00:00‘);  
+-------------------------------------------------------------------+  
| TIMESTAMPDIFF(MINUTE,‘2012-08-24 09:00:00‘,‘2012-08-30 12:00:00‘) |  
+-------------------------------------------------------------------+  
|                                                              8820 |   
+-------------------------------------------------------------------+  
1 row in set (0.01 sec)  

 

TIMESTAMPADD

---

 

语法： TIMESTAMPADD(interval,int_expr,datetime_expr)   说明： 将整型表达式int_expr 添加到日期或日期时间表达式 datetime_expr中。式中的interval和上文中列举的取值是一样的。  

mysql> select TIMESTAMPADD(MINUTE,8820,‘2012-08-24 09:00:00‘);  
+-------------------------------------------------+  
| TIMESTAMPADD(MINUTE,8820,‘2012-08-24 09:00:00‘) |  
+-------------------------------------------------+  
| 2012-08-30 12:00:00                             |   
+-------------------------------------------------+  
1 row in set (0.00 sec)  

 

来自：http://blog.csdn.net/zmxiangde_88/article/details/8011661

MySQL中TIMESTAMPDIFF和TIMESTAMPADD函数的用法

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