導航:
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;