MySQL按時間查詢

MySQL按時間查詢

一. 常用時間查詢語句

1.1 今天

select * from 表名 where to_days(時間字段名) = to_days(now());

1.2 昨天

SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 時間字段名) = 1

1.3 近七天

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

1.4 近30天

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

1.5 本月

SELECT * FROM 表名 WHERE DATE_FORMAT( 時間字段名, '%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( 時間字段名, '%Y%m' ) ) =1

1.7 查詢本季度數據

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

1.8 查詢上季度數據

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

1.9 查詢本年數據

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

1.10 查詢上年數據

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

1.11 查詢當前這周的數據

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

1.12 查詢上週的數據

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

1.13 查詢上個月的數據

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  上月最後一天  and 下月第一天

1.14 查詢當前月份的數據

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

1.15 查詢距離當前現在6個月的數據

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

二. 實戰查詢語句

2.1 近一月按照創建時間（年月日）分組並統計總數

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，時分秒 ，如：2020-01-28 14:04:38 而當使用了：DATE(create_time) 時，則變爲年月日了；