mysql的日期查询操作，查询最近一天，一周，一个月

我的用例：String pubtime = this.getDateStr(days);List<MblogInfo> list_mblog = commonBaseDao.find("from MblogInfo where to_days(pubtime)>= to_days('" + pubtime + "')", null);select * from A where DATE(data) = '2012-07-09';这个可以准确的查询到7.9号这天的数据，而且效率很高。本周内：select * from wap_content where week(created_at) = week(now)查询一天：select * from table where to_days(column_time) = to_days(now());select * from table where date(column_time) = curdate();查询7天：select * from table  where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(column_time);查询一个月：select * from table  where DATE_SUB(CURDATE(), INTERVAL INTERVAL 1 MONTH) <= date(column_time);

今天    select * from 表名 where to_days(时间字段名) = to_days(now());昨天    Select * FROM 表名 Where TO_DAYS( NOW( ) ) – TO_DAYS( 时间字段名) <= 17天前 如果是7天后就是DATE_ADD函数Select * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(时间字段名)近30天前Select * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名)本月Select * FROM 表名 Where DATE_FORMAT( 时间字段名, ‘%Y%m’ ) = DATE_FORMAT( CURDATE( ) , ‘%Y%m’ )上一月Select * FROM 表名 Where PERIOD_DIFF( date_format( now( ) , ‘%Y%m’ ) , date_format( 时间字段名, ‘%Y%m’ ) ) =1

//时间转成年月日时分秒select date_format(now(),'%Y%m%d%H%i%S')

//时间转成年月日select date_format(now(),'%Y%m%d')

//去年此时select DATE_ADD(now(), Interval -1 year)

//上月此时select DATE_ADD(now(), Interval -1 month)

//昨天此时select DATE_ADD(now(), Interval -1 day)

原文：http://www.2cto.com/database/201211/170388.html

更多：http://www.codesky.net/article/201003/168332.html