Search Postgresql Archives

Re: Building a "complex" select?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 2005-04-18 at 11:24, BjÃrn T Johansen wrote:
> I need a select like this..:
> 
> select ordre.id, ordre.desc, log_stop.stoptype from ordre left outer join log_stop on
> ordre.id = log_stop.ordreid where ordre.id = 22
> 
> The problem is that I need to include "where log_stop.stoptype = 1". So if log_stop
> includes 3 rows with stoptype = 1 and ordreid = 22, my select should return 3 rows.
> Also, if log_stop includes 3 rows with stoptype = 1 and 2 rows with stoptype = 2, my
> select should still return 3 rows. And if there are 0 rows with stoptype = 1, my
> select should return 1 row.

Would this work?

select ordre.id, ordre.desc, log_stop.stoptype from ordre left outer join log_stop on
ordre.id = log_stop.ordreid where ordre.id = 22 AND COALESCE(log_stop.stoptype,1)=1



---------------------------(end of broadcast)---------------------------
TIP 5: Have you checked our extensive FAQ?

               http://www.postgresql.org/docs/faq


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux