› 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
MySQL 相关项目
› MariaDB
› Drizzle
参考文档
› http://mysql-python.sourceforge.net/MySQLdb.html
这是一个创建于 3837 天前的主题，其中的信息可能已经有所发展或是发生改变。
s_ID s_title s_t s_date
1 subject1 20 2014-01-01
2 subject1 30 2014-02-01
3 subject2 40 2014-02-02
4 subject2 30 2014-02-03
5 subject3 90 2014-02-03
6 subject3 40 2014-02-05
7 subject1 30 2014-03-01
求2月份按每个subject的s_t总和排序写法，。。
1 subject1 20 2014-01-01
2 subject1 30 2014-02-01
3 subject2 40 2014-02-02
4 subject2 30 2014-02-03
5 subject3 90 2014-02-03
6 subject3 40 2014-02-05
7 subject1 30 2014-03-01
求2月份按每个subject的s_t总和排序写法，。。
 |
1
zac 2014-06-28 00:08:06 +08:00
select sum (s_t) as count from 表 where 2月区间， order by s_ID DESC 满足需求么
|
 |
2
crazybubble 2014-06-28 07:17:52 +08:00
SELECT s_title, sum(s_t) AS sum_s_t FROM xxxx WHERE s_date >= '2014-02-01' AND s_date <= '2014-02-28' GROUP BY s_title ORDER BY sum_s_t
|
 |
4
Jack OP @crazybubble seems working ! thx !
|
Select Language