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quering NULL values

From: "Luis Silva" <lfs12(at)hotmail(dot)com>
To: pgsql-novice(at)postgresql(dot)org
Subject: quering NULL values
Date: 2006-01-30 15:41:10
Message-ID: BAY18-F216D1BDE006E99E0D49E27B5090@phx.gbl (view raw, whole thread or download thread mbox)
Lists: pgsql-novice
I there I'm having a problem.

I'm doing this SQL query

select count(*) from public_identif INNER JOIN ifc ON 
ifc.spid=public_identif.spid where (ifc.profilepartindicator='' OR 
ifc.profilepartindicator='UNREGISTERED') AND 

ifc.profilepartindicator=''  can be a NULL value that is why i'm doing this, 
but it's not working. I tried ifc.profilepartindicator=NULL but i get 
nothing again. Can you help please?? Tks a lot

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