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Following SQL Query runs successfully but doesn't kill the sessions/processes

Posted on 2016-08-15
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Last Modified: 2016-08-15
Heyas,

I found the following query on Google:

DECLARE @SQL varchar(max)

SELECT @SQL = COALESCE(@SQL,'') + 'Kill ' + Convert(varchar, SPId) + ';'
FROM MASTER..SysProcesses
WHERE DBId = DB_ID(<databasename>) AND SPId <> @@SPId

--SELECT @SQL
EXEC(@SQL)

Fairly straightforward however when I run it doesn't work, but the execution window says query run successfully.

How would I go about debugging this? I am running SQL Server 2008 R2

Any assistance is appreciated.

Thank you.
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Question by:Zack
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Accepted Solution

by:
Nakul Vachhrajani earned 2000 total points
ID: 41757339
Can you confirm that the statement is indeed well-formed? Just uncomment the SELECT (@SQL), comment out the EXEC and then run the statement to confirm.

Next it is possible that by the time your query runs, the processes have ended. KILL will run silently.

Finally, try replacing sysprocesses with newer DMV variants (sys.dm_tran_locks, sys.dm_exec_sessions, or sys.dm_exec_requests) because sysprocess is included purely for backward compatibility.
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Author Closing Comment

by:Zack
ID: 41757352
Thanks using the new DMV variants fixed the issue.
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