[dba-SQLServer] Why is it so?

Selina Iddon selina at easydatabases.com.au
Wed Apr 30 06:29:52 CDT 2003


Thanks Michael.  The work was all being done on SQL, I wasn't querying any
records in Access, only trying to open the 'linked table' which was the
first view.  I'll definitely try the Profiler.
Cheers
Selina

----------------------------------------------------------------------------
---- Selina Iddon selina at easydatabases.com.au Ph: 0414 225 265 Easy Access
Databases
----- Original Message -----
From: "Michael Brösdorf" <michael.broesdorf at web.de>
To: <dba-sqlserver at databaseadvisors.com>
Sent: Monday, April 28, 2003 9:36 PM
Subject: AW: [dba-SQLServer] Why is it so?


> Hi Selina,
>
> I had the same problem with some queries that where filtering data. Access
> obviously had to read the whole table(s) and did the filtering locally,
> which caused a lot of network traffic. Doing the filtering on the server
> using a view greatly reduced the amount of data sent over the network
> thereby increasing performance considerably.
>
> You can use the SQL Profiler that comes with SQL-Server to see what
exactly
> gets requested from the server by ODBC. I found that a very usefull tool
to
> find performance problems.
>
> HTH,
>
> Michael
>
> -----Ursprüngliche Nachricht-----
> Von: dba-sqlserver-bounces at databaseadvisors.com
> [mailto:dba-sqlserver-bounces at databaseadvisors.com]Im Auftrag von Selina
> Iddon
> Gesendet: Samstag, 26. April 2003 07:09
> An: dba-sqlserver at databaseadvisors.com
> Betreff: [dba-SQLServer] Why is it so?
>
>
> Hi Everyone
> Can someone please explain the following.
> I had a SQL database with a Union View which took 4 seconds to open inside
> SQL.  Using ODBC connection linked table with Access, it took 20-23
seconds
> to open.
> Trying all kinds of things I eventually made a new SQL View which did
> nothing but show all fields in the Union View.  I then linked the new view
> and hey presto, Access also only takes 4 seconds to open it.  Great that
it
> worked, but I'd love to know why.
> Thanks
> Selina
>
>
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