Exit and rollback everything in script on error

Posted by Jan W. on Stack Overflow See other posts from Stack Overflow or by Jan W.
Published on 2010-05-26T08:05:08Z Indexed on 2010/05/26 8:21 UTC
Read the original article Hit count: 220

Hey guys !

I'm in a bit of a pickle here. I have a TSQL script that does a lot of database structure adjustments but it's not really safe to just let it go through when something fails.

to make things clear:

  • using MS SQL 2005
  • it's NOT a stored procedure, just a script file (.sql)

what I have is something in the following order

BEGIN TRANSACTION
    ALTER Stuff
    GO

    CREATE New Stuff
    GO

    DROP Old Stuff
    GO
IF @@ERROR != 0
    BEGIN
  PRINT 'Errors Found ... Rolling back'
  ROLLBACK TRANSACTION
  RETURN
    END
ELSE
     PRINT 'No Errors ... Committing changes'
     COMMIT TRANSACTION

just to illustrate what I'm working with ... can't go into specifics now, the problem ...

When I introduce an error (to test if things get rolled back), I get a statement that the ROLLBACK TRANSACTION could not find a corresponding BEGIN TRANSACTION. This leads me to believe that something when REALLY wrong and the transaction was already killed. what I also noticed is that the script didn't fully quit on error and thus DID try to execute every statement after the error occured. (I noticed this when new tables showed up when I wasn't expecting them because it should have rollbacked)

any help in this department is welcome

if more speficics are needed, ask!

greetz

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