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SQL Server 2005
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Stored procedure in User defined function?
13 posts, Page 2 of 2
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Stored procedure in User defined function?
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Kent Waldrop
Kent Waldrop
Posted Tuesday, January 13, 2009 11:00 AM
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The problem I've seen is that once you start doing these kinds of "dirty tricks" that the dirty tricks eventually become seen as acceptable when really they never should be. Better to run a "tight ship" and be secure.
Post #635665
RBarryYoung
RBarryYoung
Posted Tuesday, January 13, 2009 11:04 AM
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Agreed.
-- RBarryYoung
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"Performance is our middle name."
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GilaMonster
GilaMonster
Posted Tuesday, January 13, 2009 11:19 AM
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RBarryYoung (1/13/2009)
And the SQL parser, optimizer and data engine rely heavily on the assumption that functions can
not
cause changes in the database while they are being invoked. Almost all of the restrictions in UDF revolve around insuring that this is the case.
And one of the reasons for that is so that the optimiser is free to pick execution plans without worrying about how many times the function will be executed.
Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild
: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter
We stand on the bridge and no one may pass
Post #635681
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