MySQL按时间查询

MySQL按时间查询

一. 常用时间查询语句

1.1 今天

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

1.2 昨天

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

1.3 近七天

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

1.4 近30天

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

1.5 本月

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

1.6 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

1.7 查询本季度数据

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

1.8 查询上季度数据

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

1.9 查询本年数据

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

1.10 查询上年数据

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

1.11 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());

1.12 查询上周的数据

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

1.13 查询上个月的数据

select name,submittime from 表名 where date_format(submittime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m')

select * from 表名 where DATE_FORMAT(pudate,'%Y%m') = DATE_FORMAT(CURDATE(),'%Y%m') ; 

select * from 表名 where WEEKOFYEAR(FROM_UNIXTIME(pudate,'%y-%m-%d')) = WEEKOFYEAR(now()) 

select * from 表名 where MONTH(FROM_UNIXTIME(pudate,'%y-%m-%d')) = MONTH(now()) 

select * from 表名 where YEAR(FROM_UNIXTIME(pudate,'%y-%m-%d')) = YEAR(now()) and MONTH(FROM_UNIXTIME(pudate,'%y-%m-%d')) = MONTH(now()) 

select * from 表名 where pudate between  上月最后一天  and 下月第一天

1.14 查询当前月份的数据

select name,submittime from 表名 where date_format(submittime,'%Y-%m')=date_format(now(),'%Y-%m')

1.15 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()

二. 实战查询语句

2.1 近一月按照创建时间（年月日）分组并统计总数

SELECT DATE(create_time) AS TIME,COUNT(id) AS COUNT FROM tb_py_news WHERE DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= DATE(create_time) GROUP BY DATE(create_time)

其中 create_time 本身是包含： 年月日，时分秒 ，如：2020-01-28 14:04:38 而当使用了：DATE(create_time) 时，则变为年月日了；