文章转自：

https://www.cnblogs.com/qlqwjy/p/7718219.html

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,时间字段名FROM enterprise WHERE YEARWEEK(date_format(时间字段名,'%Y-%m-%d')) = YEARWEEK(now());

查询上周的数据

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

查询某个月的数据

select * from exam   where date_format(starttime,'%Y-%m')='2017-10'