mysql日期时间处理
获得当前周的周一到周日
select subdate(curdate(),date_format(curdate(),'%w')-1)//获取当前日期在本周的周一
select subdate(curdate(),date_format(curdate(),'%w')-7)//获取当前日期在本周的周日
数据库字段为int 那样where条件这样写:
FROM_UNIXTIME(a.visit_time, '%Y-%m-%d') = subdate(
curdate(),
date_format(curdate(), '%w') - 7
-- 当天
where to_days(时间字段名) = to_days(now());
-- 本周
SELECT * FROM 表名 WHERE YEARWEEK(date_format(时间字段,'%Y-%m-%d')) = YEARWEEK(now());
-- 最近7天
SELECT * FROM 表名 where date_sub(curdate(), INTERVAL 7 DAY) <= date (时间字段);
-- 本月
SELECT * FROM 表名 where date_format(时间字段, '%Y%m') = date_format(curdate() , '%Y%m');
-- 最近30天
SELECT * FROM 表名 WHERE date_sub(curdate(), INTERVAL 30 DAY) <= date(时间字段);
-- 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
-- 本季度
SELECT * FROM 表名 WHERE QUARTER(create_date)=QUARTER(now());
查询上季度数据
=QUARTER(DATE_SUB(now(),interval 1 QUARTER));
查询本年数据
YEAR(create_date)=YEAR(NOW());
查询上年数据
year(create_date)=year(date_sub(now(),interval 1 year));
查询上周的数据
YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now())-1;
查询上个月的数据
date_format(submittime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m')
DATE_FORMAT(pudate,'%Y%m') = DATE_FORMAT(CURDATE(),'%Y%m') ;
WEEKOFYEAR(FROM_UNIXTIME(pudate,'%y-%m-%d')) = WEEKOFYEAR(now())
MONTH(FROM_UNIXTIME(pudate,'%y-%m-%d')) = MONTH(now())
YEAR(FROM_UNIXTIME(pudate,'%y-%m-%d')) = YEAR(now()) and MONTH(FROM_UNIXTIME(pudate,'%y-%m-%d')) = MONTH(now())
between 上月最后一天 and 下月第一天
查询距离当前现在6个月的数据
submittime between date_sub(now(),interval 6 month) and now();
转载自:https://www.cnblogs.com/zuochuang/p/7985890.html