[AccessD] Performance ADO - DAO or ??

Okay, a few things.  First, ADO is NOT faster then DAO. But the speed
difference probably wouldn't be noticable.  Next, why are you closing all
connections at the end of your procedures.  In reality, if things seem slow,
keeping a constant 'global' conneciton will speed things up, over reopening
the same connection again and again.

Along those lines, if you have bound forms, there is a method to force the
BE link to remain open.  Create a table in the BE, then create a bound form
to that table (linked in the FE).  On the startup of your apps, open that
form hidden, and keep it open.

Drew

-----Original Message-----
From: marcel.vreuls at achmea.nl [mailto:marcel.vreuls at achmea.nl]
Sent: Monday, October 20, 2003 6:37 AM
To: Access Developers discussion and problem solving
Subject: [AccessD] Performance ADO - DAO or ??


Dear group,

It has been a while since I looked into this group. My daughter (7 months)
took up most of my time recently. But work goes on so I would like to ask
you the following.

I am strugling with the following. I have about 6 access 2000 applications
distributed among several customers. All database use DAO and have a FE and
BE. It works fine but know customers start complaining about performance.
Expecially on a network envirnement.
I have
 - Looked through all the queries and changed all the SELECT *  queries
with only the data wich is used
- closed all recordset and database connection at the end of eacht function
of module.
-  Removed databound forms as much as possible. This is a lot of work and I
do not know if i want to do this.

But this all did not improved much.

I am thinking about the following
- Is it a option to move to ADO instead of DAO. Does this improve
performance?. In my tests it does not matter much but perhaps I am missing
something
- The performance analyser in Access tells me to use fewer controls on a
form. If I do this does this improve performance
- moving to sql server. But this will cost my customer a lot of money and
the won´t be happy.


Any suggestions, ideas??
I am thinking to rewrite the programms to VB, anyone experience, tips,
tricks in this.

Thansk marcel





"dave sharpe" <davesharpe2 at cox.net>@databaseadvisors.com op 19-10-2003
06:32:54

Antwoord aub aan Access Developers discussion and problem solving
      <accessd at databaseadvisors.com>

Verzonden door:     accessd-bounces at databaseadvisors.com


Aan:  "Access Developers discussion and problem solving"
      <accessd at databaseadvisors.com>
cc:

Onderwerp:     Re: [AccessD] ado recordcount



John - This article may be of benefit
Dave

PRB: ADO: Recordcount May Return -1

http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:
80/support/kb/articles/q194/9/73.asp&NoWebContent=1


----- Original Message -----
From: "John Colby" <jcolby at colbyconsulting.com>
To: "AccessD" <AccessD at databaseadvisors.com>
Sent: Saturday, October 18, 2003 11:38 PM
Subject: [AccessD] ado recordcount


I am opening a recordset (raw table) that contains records.
Move last, move first.
EOF and BOF are both false.

Recordcount = -1

What gives?  How do I tell how many records in the recordset?

John W. Colby
www.colbyconsulting.com

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