MySql 针对日期的一些计算/查询操作

  

  废话不多说,直接上干货

 

-- 今天
SELECT * FROM t_user_info WHERE TO_DAYS(create_time) = TO_DAYS(NOW());
结果:


-- 昨天
SELECT * FROM t_user_info WHERE TO_DAYS( NOW( ) ) - TO_DAYS( create_time) = 1;
结果: 

 

-- 近7天
SELECT * FROM t_user_info WHERE DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= DATE(create_time);

结果:

 

-- 近30天
SELECT * FROM t_user_info WHERE DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= DATE(create_time);

结果:

 

-- 本月
SELECT * FROM t_user_info WHERE DATE_FORMAT( create_time, '%Y%m' ) = DATE_FORMAT( CURDATE() , '%Y%m' );
-- 查询当前月份的数据
SELECT * FROM t_user_info WHERE DATE_FORMAT(create_time,'%Y-%m') = DATE_FORMAT(NOW(),'%Y-%m');

结果:

 

 

-- 上一月
SELECT * FROM t_user_info WHERE PERIOD_DIFF( DATE_FORMAT( NOW() , '%Y%m' ) , DATE_FORMAT( create_time, '%Y%m' ) ) =1;
-- 查询上个月的数据
SELECT * FROM t_user_info WHERE DATE_FORMAT(create_time,'%Y-%m') = DATE_FORMAT(DATE_SUB(CURDATE(), INTERVAL 1 MONTH),'%Y-%m');

结果:

 

-- 查询当前这周的数据
SELECT * FROM t_user_info WHERE YEARWEEK(DATE_FORMAT(create_time,'%Y-%m-%d')) = YEARWEEK(NOW());

结果:

 

-- 查询上周的数据
SELECT * FROM t_user_info WHERE YEARWEEK(DATE_FORMAT(create_time,'%Y-%m-%d')) = YEARWEEK(NOW())-1;

结果:

  

-- 查询本季度数据
SELECT * FROM t_user_info WHERE QUARTER(create_time)=QUARTER(NOW());
-- 查询上季度数据
SELECT * FROM t_user_info WHERE QUARTER(create_time)=QUARTER(DATE_SUB(NOW(),INTERVAL 1 QUARTER));
-- 查询本年数据
SELECT * FROM t_user_info WHERE YEAR(create_time)=YEAR(NOW());

 

  未完待续......



 

posted @ 2021-05-11 11:00  姜饼攻城狮  阅读(226)  评论(0编辑  收藏  举报