Article View: borland.public.cppbuilder.database.ado
Article #1874Re: ADO database and multiusers
From: Viatcheslav V. Vassiliev
Date: Mon, 26 Jan 2004 17:28
Date: Mon, 26 Jan 2004 17:28
40 lines
2567 bytes
2567 bytes
You probably use client-side cursor. In this mode TADODataSet (TADOTable, TADOQuery) fetches all rows into in-memory cache. So you will not see changes without calling Requery() - that is true for any DBMS. Jet unlike other DBMS can delay writes to disk. Search for "Jet flush" (without quotes) in MSDN and you will see some articles that describe flush properties, such as "Jet OLEDB:Shared Async Delay", "Jet OLEDB:Flush Transaction Timeout". //------------------------------------------ Regards, Vassiliev V. V. http://www.managed-vcl.com - using .Net objects in Delphi + ADO.Net http://www.oledbdirect.com - The fastest way to access MS SQL Server, MS Jet (Access) and Interbase (through OLEDB) "Stefano Dardari" <s.dardari@tin.it> �������/�������� � �������� ���������: news:40154b51@newsgroups.borland.com... > Hi Viatcheslav V. Vassiliev, > > > If database is not too big (up to some MB) - it is a good solution. > > > > If one user modifies a record, there may be some seconds delay until other > > users will see changes. > > But it must be specified some particular connecttion string or set some > special parameter to get this sincronization ? > > I've tryed in local, with 2 application running on same DB, if I > insert/delete or modify a record on the other Application I can't see any > changes, also after one minute. > > Must I have to wait for a particular event ? > I've not found any explanation at all around the web. > > Thanks for any help. > Steve > >
Technical Details
Message-ID:
<40154e22$1@newsgroups.borland.com>Path:
arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mailReferences:
<4014e5ef@newsgroups.borland.com> <4014fbb6$1@newsgroups.borland.com> <40154b51@newsgroups.borland.com>Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII X-Google-Thread: 10698b,21e9f0017d3511d4 X-Google-Attributes: gid10698b,public X-Google-ArrivalTime: 2004-01-26 09:40:49 PST From: "Viatcheslav V. Vassiliev" <support@oledbdirect.com> Newsgroups: borland.public.cppbuilder.database.ado References: <4014e5ef@newsgroups.borland.com> <4014fbb6$1@newsgroups.borland.com> <40154b51@newsgroups.borland.com> Subject: Re: ADO database and multiusers Date: Mon, 26 Jan 2004 20:28:00 +0300 Lines: 42 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 NNTP-Posting-Host: 213.234.218.42 Message-ID: <40154e22$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1075138082 213.234.218.42 (26 Jan 2004 09:28:02 -0700) Path: arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail