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 Other SQL Server Topics (2005)
 80 vs 90
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TRACEYSQL
Aged Yak Warrior

593 Posts

Posted - 11/03/2007 :  08:38:56  Show Profile  Send TRACEYSQL an ICQ Message  Reply with Quote
I just found out that our vendor says the database works in SQL 2005 but they have not changed to 90 compability because if the db is at 90 the software says sorry you must be in 80 mode.

So what will not work and what benefits am i not getting by not using 90.

Thanks

snSQL
Flowing Fount of Yak Knowledge

USA
1837 Posts

Posted - 11/03/2007 :  14:09:02  Show Profile  Reply with Quote
Take a look at the docs for the sp_dbcmptlevel, they give you a set of tables that describe all of the functional differences when using the different levels.
http://msdn2.microsoft.com/en-us/library/ms178653.aspx
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rmiao
Flowing Fount of Yak Knowledge

USA
7266 Posts

Posted - 11/03/2007 :  20:34:17  Show Profile  Reply with Quote
You'll not get benefits other than make the app happy, and all sql2k5 features will not work in that db.
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Kristen
Test

United Kingdom
22415 Posts

Posted - 11/04/2007 :  02:28:14  Show Profile  Reply with Quote
I had read that running a SQL2005 database at lower than its Native 90 Compatibility Mode reduces performance. If that is true then I think it significant enough tog et the vendor to do something about it!

I think there is also a mistaken belief that maintaining 90 to remain compatible with SQL 2000 means that it isn't necessary to re-test the app. That is just nuts! SQL 2005 contains lots of new code, any bit of which MIGHT have a bug, or a different way of working. And given that, IMHO, it is essential to retest an application for a new version of SQL server then you/your vendor might as well try the latest Compatibility Mode and retest using that!

Kristen
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TRACEYSQL
Aged Yak Warrior

593 Posts

Posted - 11/04/2007 :  07:08:46  Show Profile  Send TRACEYSQL an ICQ Message  Reply with Quote
Thanks, i was testing the new convesion on SQL 2005 put in 90 mode logged into the ERP system and viola gives me cannot run in 80 mode i was you are kidding me.....Sent email to vendor and said get me the correct software

I get details of the findings especially the performance part and send them .

Cheers
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