>-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >Behalf Of Stephen Russell >Sent: Wednesday, April 23, 2008 10:58 AM >To: [EMAIL PROTECTED] >Subject: Re: Looking to optimize a query > > >are the keys the same between the tables? > >SELECT FROM maintable >WHERE pKey NOT IN >( >SELECT pKey FROM filterlisttable >)
Our SELECT does have the same "keys" in each table, but these keys are made up from multiple fields. SELECT FROM maintable WHERE field1+field2+field3 NOT IN (SELECT field1+field2+field3 FROM filterlisttable) _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/[EMAIL PROTECTED] ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
