MYSQL中按照季度、月份等分组

转自：https://www.freesion.com/article/1415317089/

mysql中关于分组的使用

1.  
   select DATE_FORMAT(create_time,'%Y%u') weeks,count(caseid) count from tc_case group by weeks;
2.  
   select DATE_FORMAT(create_time,'%Y%m%d') days,count(caseid) count from tc_case group by days;
3.  
   select DATE_FORMAT(create_time,'%Y%m') months,count(caseid) count from tc_case group by months;
4.  
    
5.  
   1、按照月份：
6.  
   select sum(total_amount) as total, date_format(stat_date, '%Y-%m') from week_report WHERE `stat_date` BETWEEN '2016-11-02' AND '2017-04-30' group by date_format(stat_date, '%Y-%m');
7.  
   select sum(total_amount) as total,date_format(stat_date, '%Y-%m') from week_report WHERE `stat_date` BETWEEN '2016-12-11' AND '2016-12-22' group by date_format(stat_date, '%Y-%m');
8.  
   获得按照月份分组进行汇总的数据。
9.  
    
10.  
    concat()连接字符串
11.  
     
12.  
    -- month
13.  
    select CONCAT(YEAR(stat_date),'_',DATE_FORMAT(stat_date,'%m')) months ,sum(total_amount) as count_amount, sum(total_new_user) as count_new_user, sum(da_active_user) as count_active_user from xxx
14.  
    WHERE `stat_date` BETWEEN '2016-01-02' AND '2017-05-30' group by months;
15.  
     
16.  
    -- 季度
17.  
    select CONCAT(YEAR(stat_date),'_',quarter(stat_date)) qu,sum(total_amount) as count_amount, sum(total_new_user) as count_new_user, sum(da_active_user) as count_active_user from xxx
18.  
    WHERE `stat_date` BETWEEN '2016-01-02' AND '2017-05-30' group by qu;
19.  
     
20.  
    -- 周
21.  
    select CONCAT(YEAR(stat_date),'_',DATE_FORMAT(stat_date,'%U')) weeks,sum(total_amount) as count_amount, sum(total_new_user) as count_new_user, sum(da_active_user) as count_active_user from xxx
22.  
    WHERE `stat_date` BETWEEN '2016-01-02' AND '2017-05-30' group by weeks;
23.  
     
24.  
    -- 天
25.  
    select CONCAT(YEAR(stat_date),'_',DATE_FORMAT(stat_date,'%m'),'_',DATE_FORMAT(stat_date,'%d')) days, sum(total_amount) as count_amount, sum(total_new_user) as count_new_user, sum(da_active_user) as count_active_user from xxx
26.  
    WHERE `stat_date` BETWEEN '2016-01-02' AND '2017-05-30' group by days