Thanks for all the feedback... my colleague added an index to the second table (the main table already had one) and this did wonders and brought the query down to a split second. The query being the original SELECT... NOT IN (SELECT ...)
Kevin -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of MB Software Solutions General Account Sent: Wednesday, April 23, 2008 12:00 PM To: [EMAIL PROTECTED] Subject: Re: Looking to optimize a query Stephen Russell wrote: > On Wed, Apr 23, 2008 at 9:25 AM, Kevin O'Shea <[EMAIL PROTECTED]> > wrote: > >> <snipped> >> When building the lookup lists, we looked at using a >> SELECT FROM maintable WHERE field1+field2+field3 NOT IN (SELECT >> field1+field2+field3 FROM filterlisttable) >><snipped> > ------------------------------------- > > > are the keys the same between the tables? > > SELECT FROM maintable > WHERE pKey NOT IN > ( > SELECT pKey FROM filterlisttable > ) > > > Steve -- isn't that what he already said in the original post right above what you wrote?!?!?!?!????????????????????? [excessive quoting removed by server] _______________________________________________ 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.
