mysql 查询当天、本周，本月，上一个月的数据......

今天

select * from 表名 where to_days(时间字段名) = to_days(now());

 

昨天

SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) <= 1

 

近七天

SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(时间字段名)

 

近30天

SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名)

 

本月

SELECT * FROM 表名 where DATE_FORMAT(create_time,'%Y%m') = DATE_FORMAT(CURDATE(),'%Y%m')

 

上个月

SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , '%Y%m' ) , date_format( 时间字段名, '%Y%m' ) ) =1

 

查询本季度数据

select * from 表名 where QUARTER(create_date)=QUARTER(now());

 

查询上季度数据

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

 

查询本年数据

select * from 表名 where YEAR(create_date)=YEAR(NOW());

 

查询上年数据

select * from 表名 where year(create_date)=year(date_sub(now(),interval 1 year));

 

查询当前这周的数据

SELECT name,submittime FROM 表名 WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now());

 

查询上周的数据

SELECT name,submittime FROM 表名 WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now())-1;

 

查询距离当前现在6个月的数据

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

 

连表删除

 

DELETE t1 FROM t1,t2 WHERE t1.id=t2.id    
或
DELETE  FROM t1 USING t1,t2 WHERE t1.id=t2.id

 

t1是表1，t2是表2