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Stored Procedure Execution
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Stored Procedure Execution
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Jason Shadonix
Jason Shadonix
Posted Tuesday, June 08, 2010 9:59 PM
Ten Centuries
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Last Login: Yesterday @ 11:27 AM
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Comments posted to this topic are about the item
Stored Procedure Execution
Jason Shadonix
MCTS, SQL 2005
Post #934369
UMG Developer
UMG Developer
Posted Tuesday, June 08, 2010 10:00 PM
SSCrazy
Group: General Forum Members
Last Login: Monday, May 13, 2013 11:21 AM
Points: 2,163,
Visits: 2,148
Great question, thanks Jason!
The old don't start your SP names with SP_
I really wish I knew all of this 13 years ago... ;)
Post #934370
ziangij
ziangij
Posted Tuesday, June 08, 2010 10:50 PM
SSCommitted
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Visits: 359
thanks, great question... got it wrong though
A user-defined stored procedure that has the same name as a system stored procedure and is either nonqualified or is in the dbo schema will never be executed; the system stored procedure will always execute instead.
i have read the microsoft link; was wondering if the user-defined proc doesn't ever run then what is the purpose of creating that proc ? why can't an error be thrown instead ?
Post #934384
forjonathanwilson
forjonathanwilson
Posted Tuesday, June 08, 2010 11:08 PM
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Nailed it, because I assumed that "person" was not me. If I were "person" the answer would have been 5.
Post #934388
forjonathanwilson
forjonathanwilson
Posted Tuesday, June 08, 2010 11:13 PM
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ziangij (6/8/2010)
thanks, great question... got it wrong though
A user-defined stored procedure that has the same name as a system stored procedure and is either nonqualified or is in the dbo schema will never be executed; the system stored procedure will always execute instead.
i have read the microsoft link; was wondering if the user-defined proc doesn't ever run then what is the purpose of creating that proc ? why can't an error be thrown instead ?
1) the user defined proc can be run explicitly, perhaps in within an EXEC(string) used in a proc that built the command with the user name as argument.
2)Or if that particular user (joeFoo) runs sp_whatever, and his/her username is attached to another proc with the same name (joeFoo.sp_whatever), then THAT proc executes.
Post #934390
malleswarareddy_m
malleswarareddy_m
Posted Wednesday, June 09, 2010 12:50 AM
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I got wrong.Thought that it will give error the sp_ ...... procedure already exists if the procedure name alreay in master database.
Malleswarareddy
I.T.Analyst
MCITP(70-451)
Post #934420
Mighty
Mighty
Posted Wednesday, June 09, 2010 1:03 AM
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forjonathanwilson (6/8/2010)
Nailed it, because I assumed that "person" was not me. If I were "person" the answer would have been 5.
Or if the default schema of the user executing it is person.
Post #934424
vignesh 38804
vignesh 38804
Posted Wednesday, June 09, 2010 2:10 AM
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Last Login: Monday, July 05, 2010 10:56 PM
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Avoiding uage of prefix sp_ improves the performance.
Post #934440
prashant.bhatt
prashant.bhatt
Posted Wednesday, June 09, 2010 2:27 AM
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Last Login: Friday, March 29, 2013 1:52 AM
Points: 118,
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Very Nice question
I am not sure but the query is returning me 5....
I dont have the AdventureWorks db on the server...
Tried using the test database with dbo schema.... may be this is why the results are different for me
Prashant Bhatt
Sr Engineer - Application Programming
Post #934448
WayneS
WayneS
Posted Wednesday, June 09, 2010 4:45 AM
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Last Login: Today @ 5:29 PM
Points: 6,367,
Visits: 8,226
Good question Jason!
Wayne
Microsoft Certified Master: SQL Server 2008
If you can't explain to another person how the code that you're copying from the internet works, then
DON'T USE IT
on a production system! After all,
you
will be the one supporting it!
Links:
For better assistance in answering your questions
,
How to ask a question
,
Performance Problems
,
Common date/time routines
,
CROSS-TABS and PIVOT tables Part 1
&
Part 2
,
Using APPLY Part 1
&
Part 2
,
Splitting Delimited Strings
Post #934518
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