On Sat, Jul 21, 2012 at 2:21 AM, Rich Shepard <rshepard(at)appl-ecosys(dot)com> wrote:
> On Sat, 21 Jul 2012, Chris Angelico wrote:
>
>> Try this:
>>
>> SELECT DISTINCT param FROM table WHERE indicator=0
>> EXCEPT
>> SELECT DISTINCT param FROM table WHERE indicator=1
>
>
> Chris,
>
> Thank you. I knew it was simple, and I've not before used the EXCEPT
> condition.
>
> Very much appreciate,
>
> Rich
No probs! SQL, like many other languages, allows you to combine its
primitives in some fairly complex ways. I don't know how hard it'd be
to make it work on Postgres, but here's an epic piece of SQL
awesomeness:
http://thedailywtf.com/Articles/Stupid-Coding-Tricks-The-TSQL-Madlebrot.aspx
ChrisA