Okay, I feel better now, thanks :) James E Harvey Hanover Shoe Farms, Inc. M.I.S./Corresponding Officer Off: 717-637-8931 fax: 717-637-6766 email: [EMAIL PROTECTED]
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of MB Software Solutions Sent: Wednesday, August 08, 2007 11:40 AM To: [email protected] Subject: Re: select question James E Harvey wrote: > I'm being insecure in my skill level. > > I've been using "subselects" for what seems like years, and I was just > thinking that maybe they were considered "old fashioned" by now? > Others can better comment perhaps, but here's my take on it: by using the JOINs on an optimizable (indexed) field, I'm cutting the response time down as the SQL engine ascertains the appropriate (or excludes the inappropriate, depending on your point of view) records sooner and doesn't have to do an entire subquery result and then join those matches to the master table. Again, that's not from a textbook but just my recollection of how it was explained to me long ago. Jim, if it works--and it's not terribly slow--stay with it. No sense messing with something that operates just fine! -- Michael J. Babcock, MCP MB Software Solutions, LLC http://mbsoftwaresolutions.com http://fabmate.com "Work smarter, not harder, with MBSS custom software solutions!" [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.
