On Tue, Nov 10, 2009 at 12:19 PM, MB Software Solutions, LLC <[email protected]> wrote: > Our vendor is having performance issues in their accessing our foxpro > data over OLE-DB. If indexes are present, they are used, right? They > claimed to have used something like a sniffer to see what looks like a > table-scan to them (meaning that indexes are NOT being utilized). ----------------------
As a heads up here you are using the OLE-DB engine which is NOT the entire VFP engine. I will say that I doubt Rushmore can overlay using indexes for a join as well as in the where clause. Only because no other RDBMS can do it. I could be wrong but I think that VFP is not magic and it follows all the other logic used in SQL. You may have found the VFP SQL is not as strong as once thought, and that the local engine was rarely using it outright even though your syntax looked like SQL, it was doing a down and dirty conversion to xbase. The term sniffer sounds like the wrong word. there are execution plan generators that will work with the various backends getting you an honest translation for what is supposed to happen. -- Stephen Russell Sr. Production Systems Programmer SQL Server DBA Web and Winform Development Independent Contractor Memphis TN 901.246-0159 _______________________________________________ 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.
