mysql语句

1.查询今天的数据

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

2.查询昨天的数据

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

3.查询7天内的数据

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

4.查询30天内的数据

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

5.查询本月的数据

SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, '%Y%m' ) = DATE_FORMAT( CURDATE( ) , '%Y%m' )

6.查询上一月的数据

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')

16.查询今日符合条件的重复数据

SELECT add_time,ps_orderno,COUNT(*) FROM order_info where TO_DAYS(add_time) = TO_DAYS(NOW()) and source_orderno = 'F75283387E5D6BE77CC3CF2F1FFDEBA4' and source_code = 080 and goods_name = '压力测试' GROUP BY ps_orderno HAVING COUNT(*) > 1