Article View: borland.public.cppbuilder.database.ado
Article #3947Re: Synchronising ADOConnections
From: Arnie Mauer
Date: Fri, 24 May 2002 13:28
Date: Fri, 24 May 2002 13:28
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2088 bytes
Thomas, Don't know of any magic parameters. You might want to put the delete in a transaction and commit it when done. Also, use thread synchronization via semaphores or critical sections. - Arnie "Thomas Wagener" <Thomas.Wagener@web.de> wrote in message news:3cedf0d8$1_1@dnews... > Hi, > > I have a problem concerning the sychronisation of ADOConnections in > different threads. When I call a delete statement (via a TADOCommand) on a > table, a query in a different thread is still giving back the deleted record > set. The application works on a user database. When I delete a user in one > thread the username is still displayed in the other, although I obtain the > user list definitely after the first command was executed. > Each thread holds a TADOConnection that is only closed but not destroyed > between the queries on the database. I suspect that the caches of the > connections are not updated properly. Is there a magic parameter for > TADOConnection that might remedy this problem, do I have to destroy the > connection after each query, or am I completely on the wrong track? I am > using CBuilder 5. > > Any suggestions, > > Thomas > >
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10698b,588b209f7c6a4a7e X-Google-Attributes: gid10698b,public X-Google-ArrivalTime: 2002-05-24 06:30:52 PST From: "Arnie Mauer" <amauer@vrms.com> Newsgroups: borland.public.cppbuilder.database.ado References: <3cedf0d8$1_1@dnews> Subject: Re: Synchronising ADOConnections Date: Fri, 24 May 2002 09:28:29 -0400 Lines: 33 Organization: VRMS X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 NNTP-Posting-Host: 24.151.50.11 Message-ID: <3cee3ffa$2_2@dnews> X-Trace: dnews 1022246906 24.151.50.11 (24 May 2002 06:28:26 -0700) Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-01!supernews.com!iad-peer.news.verio.net!news.verio.net!news.stealth.net!news.stealth.net!newsfeed.wirehub.nl!PeerFeed.KWeb.on.ca!dnews