MySQL日期查询

MySQL日期查询

1、今天

select * from 表名 where to_days(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、7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、查询本季度数据

select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(now());

8、查询上季度数据

select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(DATE_SUB(now(),interval 1 QUARTER));

9、查询本年数据

select * from `ht_invoice_information` where YEAR(create_date)=YEAR(NOW());

10、查询上年数据

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、查询距离当前现在6个月的数据

select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now();

15、查询上个月的数据

select name,submittime from enterprise   where date_format(submittime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m');
select * from ` user ` where DATE_FORMAT(pudate, ' %Y%m ' ) = DATE_FORMAT(CURDATE(), ' %Y%m ' ) ;
select * from user where WEEKOFYEAR(FROM_UNIXTIME(pudate,'%y-%m-%d')) = WEEKOFYEAR(now());
select * 
from user 
where MONTH (FROM_UNIXTIME(pudate, ' %y-%m-%d ' )) = MONTH (now());
select * 
from [ user ] 
where YEAR (FROM_UNIXTIME(pudate, ' %y-%m-%d ' )) = YEAR (now())
and MONTH (FROM_UNIXTIME(pudate, ' %y-%m-%d ' )) = MONTH (now());
select * 
from [ user ] 
where pudate between 上月最后一天
and 下月第一天
where   date(regdate)   =   curdate();
select   *   from   test   where   year(regdate)=year(now())   and   month(regdate)=month(now())   and   day(regdate)=day(now());
SELECT date( c_instime ) ,curdate( )
FROM `t_score`
WHERE 1
LIMIT 0 , 30;

1、UNIX时间戳转换为日期用函数： FROM_UNIXTIME()
select FROM_UNIXTIME(1156219870);
输出：2006-08-22 12:11:10

2、日期转换为UNIX时间戳用函数： UNIX_TIMESTAMP()
Select UNIX_TIMESTAMP(‘2006-11-04 12:23:00’);
输出：1162614180

3、输出当前：Select UNIX_TIMESTAMP(NOW());
例：mysql查询当天的记录数：
select * from message Where DATE_FORMAT(FROM_UNIXTIME(chattime),’%Y-%m-%d’) = DATE_FORMAT(NOW(),’%Y-%m-%d’) order by id desc;

16、查询当前日期的00:00:00 ~ 23:59:59

SELECT DATE_FORMAT('2022-11-28','%Y-%m-%d %H:%i:%s');
SELECT DATE_SUB( DATE_ADD('2022-11-28 00:00:00', INTERVAL 1 DAY),INTERVAL 1 SECOND);