select A.id,A.title,sum(*),sum(B.click_count),sum(C.by_count) from team A,team_click B ,order C where A.id=B.team_id and A.id=C.team_id group by A.id,A.title
用了为什么还是不行呢? #1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '*),sum(B.click_count) from team A,team_click B where A.id=B.team_id grou' at line 1
select A.id,A.title,sum(*),sum(B.click_count),sum(C.by_count) from team A,team_click B ,order C where A.id=B.team_id and A.id=C.team_id group by A.id,A.title
from team A,team_click B ,order C
where A.id=B.team_id and A.id=C.team_id
group by A.id,A.title
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '*),sum(B.click_count) from team A,team_click B where A.id=B.team_id grou' at line 1
from team A,team_click B ,order C
where A.id=B.team_id and A.id=C.team_id
group by A.id,A.title
建议你列出你的表结构,并提供测试数据以及基于这些测试数据的所对应正确结果。
参考一下这个贴子的提问方式http://topic.csdn.net/u/20091130/20/8343ee6a-417c-4c2d-9415-fa46604a00cf.html
1. 你的 create table xxx .. 语句
2. 你的 insert into xxx ... 语句
3. 结果是什么样,(并给以简单的算法描述)
4. 你用的数据库名称和版本(经常有人在MS SQL server版问 MySQL)
这样想帮你的人可以直接搭建和你相同的环境,并在给出方案前进行测试,避免文字描述理解上的误差。
我又按照你的方式重新开了个贴 谢谢你的建议