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7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( 时间字段名, '%Y%m' ) = DATE_FORMAT( CURDATE( ) , '%Y%m' )  

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  

查询本季度数据  

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

查询上季度数据  

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

查询本年数据  

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

查询上年数据  

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

查询当前这周的数据   

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

查询上周的数据  

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

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')  

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();  

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())