MySQL中TIMESTAMPDIFF和TIMESTAMPADD函數的用法
阿新 • • 發佈:2017-07-11
用法 int blog 函數 mysq second row logs tail
TIMESTAMPDIFF
語法:
TIMESTAMPDIFF(interval,datetime_expr1,datetime_expr2)。
說明:
返回日期或日期時間表達式datetime_expr1 和datetime_expr2the 之間的整數差。其結果的單位由interval 參數給出。該參數必須是以下值的其中一個:
- FRAC_SECOND---(表示間隔是毫秒)
- SECOND---(秒)
- MINUTE---(分鐘)
- HOUR---(小時)
- DAY---(天)
- WEEK---(星期)
- MONTH---(月)
- QUARTER---(季度)
- YEAR---(年)
mysql>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
語法: TIMESTAMPADD(interval,int_expr,datetime_expr) 說明: 將整型表達式int_expr 添加到日期或日期時間表達式 datetime_expr中。式中的interval和上文中列舉的取值是一樣的。
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)
來自:http://blog.csdn.net/zmxiangde_88/article/details/8011661
MySQL中TIMESTAMPDIFF和TIMESTAMPADD函數的用法