[AccessD] Could somebody expand on this a little?

  I don't totally agree with Jim's statement.  Again, you need to be
specific with what your trying to do and understand what's going on.

  A pass-through query executes entirely on the BE server.  If I'm simply
trying to fetch records for browsing (ie. open a table or do a simple join
with no filtering), then a pass-through query makes little sense.  But if
I'm doing a complex join, filtering, sorting, etc, then it is a performance
boost to do everything on the server side.

  And if I'm not fetching, but updating or deleting, then they make a lot of
sense.  Using anything else would be silly.

Jim.

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Steve Erbach
Sent: Tuesday, January 31, 2006 7:38 AM
To: Access Developers discussion and problem solving
Subject: Re: [AccessD] Could somebody expand on this a little?


Jim,

Thank you.  I've never used them.

Steve Erbach

On 1/30/06, Jim Lawrence <accessd at shaw.ca> wrote:
> Pass-through queries have terrible performance especially if you are
trying
> to access dataset (recordsets).
>
> Jim
>
> -----Original Message-----
> From: accessd-bounces at databaseadvisors.com
> [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Steve Erbach
> Sent: January 30, 2006 6:31 AM
> To: Access Developers discussion and problem solving
> Subject: Re: [AccessD] Could somebody expand on this a little?
>
> Jim,
>
> Very interesting.  I noted that you and at least one other respondent
> mentioned pass-through queries as good performance options.
>
> What's puzzling to me, also, is a comment made to the article by
> Warren ( here's the link:
>
http://www.sqlservercentral.com/columnists/awarren/linkingaccesstosqlserver.
> asp
> ):
>
> "Performance can really suck, depending on the application and the
> bandwidth. It has to do with the way data is cached in Access and
> becomes very apparent if you have large tables (>100,000 rows).
> However, it doesn't justify pass-through queries (obsolutely NOTHING
> justifies pass-through queries). Views (in SQL server) are your
> friend."
>
> "NOTHING justifies pass-through queries."  I didn't challenge him on
> that.  I should have, I suppose, but I know zip about pass-through
> queries.  What's your view?
> --
> Regards,
>
> Steve Erbach
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