mysql 时间函数的使用
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2024-01-28 11:51:22
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一天中开始时间
SELECT str_to_date(DATE_FORMAT(NOW(),'%Y-%m-%d'),'%Y-%m-%d %H:%i:%s');
一天中结束时间
select DATE_ADD(DATE_ADD(str_to_date(DATE_FORMAT(NOW(),'%Y-%m-%d'),'%Y-%m-%d %H:%i:%s'),INTERVAL 1 DAY),INTERVAL -1 SECOND);
1.当天时间
select * from 表名 where to_days(数据库时间字段名) = to_days(now());
2.昨天
SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) <= 1
3.近七天
SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(时间字段名)
4.近30天
SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名)
5.本月
SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, '%Y%m' ) = DATE_FORMAT( CURDATE( ) , '%Y%m' )
6.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
7.本季度数据
select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(now());
8.上季度数据
select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(DATE_SUB(now(),interval 1 QUARTER));
9.本年数据
select * from `ht_invoice_information` where YEAR(create_date)=YEAR(NOW());
10.上年数据
select * from `ht_invoice_information` where year(create_date)=year(date_sub(now(),interval 1 year));
11.查询当前这周的数据
SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now());
12.查询上周的数据
SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now())-1;
**13.查询当前月份的数据 **
select name,submittime from enterprise where date_format(submittime,'%Y-%m')=date_format(now(),'%Y-%m')
14.上月最后一天 下月第一天
select * from user where pudate between 上月最后一天 and 下月第一天