取得相隔秒数

SELECT UNIX_TIMESTAMP('2012-06-09 00:10:11')-UNIX_TIMESTAMP('2012-06-09 00:09:12')

取得相隔分钟数

SELECT round((UNIX_TIMESTAMP('2012-06-09 00:10:11')-UNIX_TIMESTAMP('2012-06-09 00:09:12'))/60)

 

时间函数

SELECT NOW();
SELECT CURRENT_DATE();
SELECT CURRENT_TIMESTAMP()
SELECT DATE_SUB(NOW(),INTERVAL 1 HOUR)
SELECT DATE_SUB(NOW(),INTERVAL 1 DAY)
SELECT DATEDIFF('2012-11-28','2012-11-25')
SELECT DATE_FORMAT(NOW(),'%m/%d/%Y %H:%i:%s')

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