Re: A join of 2 tables with sum(column) > 30

On Mar 16, 2011, at 3:03 AM, Alexander Farber wrote:

> # select u.id, u.first_name, sum(m.completed)
> from pref_users u, pref_match m
> where u.id=m.id and u.id like 'DE%' and
> sum > 30 group by u.id, u.first_name
> order by sum desc limit 3;
>
> ERROR:  column "sum" does not exist
> LINE 4: ...f_match m where u.id=m.id and u.id like 'DE%' and sum > 30 g...
>
> Any suggestions please? I've tried "... sum(m.completed) as total" too..


Try following:
select u.id, u.first_name, sum(m.completed) from pref_users u, pref_match m where u.id=m.id and u.id like 'DE%' and
sum(m.completed> 30 group by u.id, u.first_name order by sum desc limit 3;  

Thanks & Regards,
Vibhor Kumar
EnterpriseDB Corporation
The Enterprise PostgreSQL Company
vibhor.kumar@enterprisedb.com
Blog:http://vibhork.blogspot.com