mysql 按天分組查詢
Mysql按天分組（按日分組）
一、年度查詢
查詢 本年度的數據
SELECT *
FROM blog_article
WHERE year( FROM_UNIXTIME( BlogCreateTime ) ) = year( curdate( ))
二、查詢季度數據
查詢數據附帶季度數
SELECT ArticleId, quarter( FROM_UNIXTIME( `BlogCreateTime` ) )
FROM `blog_article`
其他的同前面部分：查詢 本季度的數據
SELECT *
FROM blog_article
WHERE quarter( FROM_UNIXTIME( BlogCreateTime ) ) = quarter( curdate( ))
三、查詢月度數據
本月統計(MySQL)
select * from booking where month(booking_time) =
month(curdate()) and year(booking_time) = year(curdate())
本周統計(MySQL)
select * from spf_booking where month(booking_time) =
month(curdate()) and week(booking_time) = week(curdate())
四、時間段
N天內記錄
WHERE TO_DAYS(NOW()) - TO_DAYS(時間字段) <= N
當天的記錄
where date(時間字段)=date(now())
或
where to_days(時間字段) = to_days(now());
查詢一周：
select * from table where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(column_time);
查詢一個月：
select * from table where DATE_SUB(CURDATE(), INTERVAL INTERVAL 1 MONTH) <= date(column_time);
查詢'06-03'到'07-08'這個時間段內所有過生日的會員：
Select * From user Where
DATE_FORMAT(birthday,'%m-%d') >= '06-03' and DATE_FORMAT(birthday,'%m-%d')
<= '07-08';
統計一季度數據，表時間字段為：savetime
group by concat(date_format(savetime, ' %Y ' ), FLOOR ((date_format(savetime, ' %m ' ) + 2 ) / 3 ))
或
select YEAR (savetime) * 10 + (( MONTH (savetime) - 1 ) DIV 3 ) + 1 , count ( * )
from yourTable
group by YEAR(savetime)*10+((MONTH(savetime)-1) DIV 3) +1;
五、分組查詢
1、年度分組
2、月度分組
3、先按年度分組，再按月度分組
4、按年月分組
SELECT count(ArticleId), date_format(FROM_UNIXTIME( `BlogCreateTime`),'%y%m') sdate FROM `blog_article` group by sdate