[AccessD] Performance tips anyone?

I've been able to handle about 40(on a LAN)...lot of transactional 
stuff...but with more than 40 I seemed to end up with corruption every other 
day.  I had about a 1 second screen transition.

Mark A. Matte



>From: "jwcolby" <jwcolby at colbyconsulting.com>
>Reply-To: Access Developers discussion and problem 
>solving<accessd at databaseadvisors.com>
>To: "'Access Developers discussion and problem 
>solving'"<accessd at databaseadvisors.com>
>Subject: Re: [AccessD] Performance tips anyone?
>Date: Thu, 5 Jul 2007 00:29:03 -0400
>
>Anita,
>
> >I think that 10-12 users is the absolute maximum you will get out of an
>Access database it will continue to get slower over the years as the
>database grows. At some stage you would probably have to upgrade to SQL
>server.
>
>Errrrr!  Wrong answer.
>
>I have a database with 25 users in the database every day.  The BE is
>currently about 800 mbytes.  This BE has tables with hundreds of thousands
>of records in some tables, 30K-50K records in the main tables (claimant /
>claim).  I open a VERY complex tabbed form with about 20 tabs on it, with
>subforms on each tab (JIT subforms).
>
>Users on fast machines open the form in about 1.2 seconds.  Users on very
>old slow machines take about 5 to 6 seconds.
>
>Speed of the individual workstation is the single largest determinate of
>acceptable speed.  A high speed processor and LOTS of memory (1 gig for
>Windows XP Pro) are essential.  Moving to a 1 gbit lan made a big 
>difference
>as well (which requires a gigabit NIC in the machines as well).
>
>And of course all of the things you mentioned in terms of FE optimizations.
>
>John W. Colby
>Colby Consulting
>www.ColbyConsulting.com
>-----Original Message-----
>From: accessd-bounces at databaseadvisors.com
>[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Anita Smith
>Sent: Wednesday, July 04, 2007 9:00 PM
>To: Access Developers discussion and problem solving
>Subject: Re: [AccessD] Performance tips anyone?
>
>Annie,
>There are a number of things you can do to speed up an Access Database. I
>haven't looked at the link you provided, but here are a few suggestions
>based on my experience over the years:
>
>* Make sure your tables contain indexes on the fields frequently used for
>criteria in queries
>* Put the criteria on the ONE side of the relationship in queries
>* Don't open forms and reports with large underlying recordsources. If
>possible open the forms with only 1 underlying record - not a whole table.
>* I have found that opening a form specifying the procedure arguments makes
>it open faster
>   DoCmd.OpenForm "MyForm", acNormal, , , acFormEdit instead of
>   DoCmd.OpenForm "MyForm"
>
>Upgrading to A2003 probably won't make much difference.
>
>Using Runtime mode should not make it run any slower either.
>
>SQL server Express is a great option, but you would probably have to 
>rewrite
>the form and report recordsources to really take advantage of it. It is not
>hard to set up. I think there is an upgrade wizard that will upgrade an
>Access Database to SQL Server.
>
>I think that 10-12 users is the absolute maximum you will get out of an
>Access database it will continue to get slower over the years as the
>database grows. At some stage you would probably have to upgrade to SQL
>server.
>
>I hope this helps a bit.
>
>Anita
>
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