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 Help: Database: MS SQL Server
 Access to MSQL performance issues !
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wii
Free ASP Hosts Moderator

Denmark
2632 Posts

Posted - 29 September 2005 :  15:44:11  Show Profile
Where is the guide for upgrading Access to MSQL ?

The title says it all.

I canīt find the topic that explains in easy steps how to this. It used to be sticky topic !?

Thanks

Edited by - wii on 07 October 2005 04:15:44

OneWayMule
Dev. Team Member & Support Moderator

Austria
4969 Posts

Posted - 29 September 2005 :  15:47:41  Show Profile  Visit OneWayMule's Homepage  Send OneWayMule an ICQ Message
I guess you mean this one?

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wii
Free ASP Hosts Moderator

Denmark
2632 Posts

Posted - 29 September 2005 :  16:09:47  Show Profile
Yeah, thanks.
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OneWayMule
Dev. Team Member & Support Moderator

Austria
4969 Posts

Posted - 29 September 2005 :  16:13:46  Show Profile  Visit OneWayMule's Homepage  Send OneWayMule an ICQ Message
No problem.

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wii
Free ASP Hosts Moderator

Denmark
2632 Posts

Posted - 30 September 2005 :  15:49:19  Show Profile
Ok, the upgrade went well - no problems (except one, read below) - and the forum is really fast now, running MSSQL locally on the webserver.

Just one problem - topics that have lots of pages (more than 1000) load quite slow, actually quite a bit slower than when I used Access as DB - can anyone explain why this could be?
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ruirib
Snitz Forums Admin

Portugal
26364 Posts

Posted - 30 September 2005 :  20:25:47  Show Profile  Send ruirib a Yahoo! Message
It may have to do with the indexing. Snitz default indexing for the topics page could be better.


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wii
Free ASP Hosts Moderator

Denmark
2632 Posts

Posted - 01 October 2005 :  03:50:40  Show Profile
Well, but still - seems strange that just this issue is faster using Access.
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ruirib
Snitz Forums Admin

Portugal
26364 Posts

Posted - 01 October 2005 :  05:01:05  Show Profile  Send ruirib a Yahoo! Message
SQL Server is much more dependent on proper indexing than Access, though I agree it does look strange. It's quite common, though. I remember an instance where someone with a 200 MB Access DB had a given "large" search perform in about a minute in Access and two and a half minutes in SQL Server.


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MarcelG
Retired Support Moderator

Netherlands
2625 Posts

Posted - 01 October 2005 :  08:23:56  Show Profile  Visit MarcelG's Homepage
Rui, is there a clever way of solving that on the SQL server side ? Or would that require code changes ?

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ruirib
Snitz Forums Admin

Portugal
26364 Posts

Posted - 01 October 2005 :  09:03:15  Show Profile  Send ruirib a Yahoo! Message
A proper choice of indexes should be able to help with that... Anyway, there's something that needs to be asked: what driver is being used to connect to the database? The SQLOLEDB or the ODBC driver?


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wii
Free ASP Hosts Moderator

Denmark
2632 Posts

Posted - 01 October 2005 :  11:17:14  Show Profile
SQLOLEDB

Edited by - wii on 01 October 2005 11:18:59
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ruirib
Snitz Forums Admin

Portugal
26364 Posts

Posted - 01 October 2005 :  11:46:40  Show Profile  Send ruirib a Yahoo! Message
Probably indexing needs to be looked at.


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caxps
Starting Member

35 Posts

Posted - 01 October 2005 :  15:27:01  Show Profile  Visit caxps's Homepage
what code changes are required for conversion to SQL?
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ruirib
Snitz Forums Admin

Portugal
26364 Posts

Posted - 01 October 2005 :  15:49:46  Show Profile  Send ruirib a Yahoo! Message
No code changes. Just the changes in config.asp, to set the proper strDBType and connection string.


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wii
Free ASP Hosts Moderator

Denmark
2632 Posts

Posted - 02 October 2005 :  05:03:39  Show Profile
What can be done about the indexing?

Itīs the only performance problem I have after converting MSSQL - everything else is much faster !

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ruirib
Snitz Forums Admin

Portugal
26364 Posts

Posted - 02 October 2005 :  06:33:22  Show Profile  Send ruirib a Yahoo! Message
Probably the easiest way for you would be to run the Profiler and then try several of those topics. Stop the Profiler then and see the suggestions it makes.


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