SQL 根据日期分组统计问题 - V2EX
V2EX = way to explore
V2EX 是一个关于分享和探索的地方
Sign Up Now
For Existing Member  Sign In
MySQL 5.5 Community Server
MySQL 5.6 Community Server
Percona Configuration Wizard
XtraBackup 搭建主从复制
Great Sites on MySQL
Percona
MySQL Performance Blog
Severalnines
推荐管理工具
Sequel Pro
phpMyAdmin
推荐书目
MySQL Cookbook
MySQL 相关项目
MariaDB
Drizzle
参考文档
http://mysql-python.sourceforge.net/MySQLdb.html
lyning
V2EX    MySQL

SQL 根据日期分组统计问题

  •  
  •   lyning Mar 7, 2016 3694 views
    This topic created in 3706 days ago, the information mentioned may be changed or developed.

    mysql

    表 A:
    id | date | count

    需求: 想将表 A 里面的字段 count 按照 当前年 往前 推 11 年 再根据(年 月 日)分组统计
    例如:
    year | yearCount | month | monthcount | day | dayCount
    2016 1000 01 120 02 5
    2016 1000 01 120 03 3
    ...
    2016 1000 12 110 01 10
    ...
    2015 900 01 100 03 5
    ...
    2005 800 01 120 03 3
    ...
    2005 800 12 80 12 7

    我的 sql 是这么写的, 请教(更优化 更好看 更有效率)的写法, 因为我写的这一段 sql 实在不怎么好看, 而且很罗嗦, 可能还存在问题
    SELECT tt.*, DATE_FORMAT(t.date,'%d') day, SUM(t.count) day_count
    FROM A t3,

    (SELECT t.*, DATE_FORMAT(t2.date,'%m') month, SUM(t2.count) month_count FROM A t2, (SELECT YEAR(t.recycle_date) year, SUM(t1.count)/1000 year_count FROM A t1 WHERE YEAR(t1.date)>=(YEAR(curdate())-11) GROUP BY YEAR(t1.date)) t WHERE YEAR(t1.date)=re.year GROUP BY DATE_FORMAT(t2.date,'%Y-%m')) tt 

    WHERE YEAR(t3.date)=tt.year AND MONTH(t3.date)=tt.month
    GROUP BY DATE_FORMAT(t3.date,'%Y-%m-%d')
    ORDER BY tt.year, tt.month, day ASC;

    2 replies    2016-03-07 16:03:28 +08:00
    iyaozhen
        1
    iyaozhen  
       Mar 7, 2016
    我一般就统计到日。然后有月和年的需求的话业务层自己处理。这样也比较灵活。
    div id="r_2962183" class="cell">
    lyning
        2
    lyning  
    OP
       Mar 7, 2016
    @iyaozhen 哇哦, 这个建议不错
    About     Help     Advertise     Blog     API     FAQ     Solana     1010 Online   Highest 6679       Select Language
    创意工作者们的社区
    World is powered by solitude
    VERSION: 3.9.8.5 31ms UTC 23:26 PVG 07:26 LAX 16:26 JFK 19:26
    Do have faith in what you're doing.
    ubao msn snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86