mysql 时间函数的使用

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