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client_app_name is empty in Extended Events output but present in sp_who2

  • April 26, 2024 at 1:18 pm

    #4415752

    I'm tracing activity on one database and would like to include the client_app_name in the output. However, for *some* applications, this information is blank. However, if I run sp_who2 at the same time, I can see the ProgramName column is populated.

    Is there somewhere else that extended events stores this information or is it just a disconnect between the two methods?

    Thanks.

  • April 27, 2024 at 2:10 pm

    #4416137

    Thanks for posting your issue and hopefully someone will answer soon.

    This is an automated bump to increase visibility of your question.

  • April 29, 2024 at 11:06 am

    #4416619

    I always add such attributes to the action part of the ADD EVENT

    CREATE EVENT SESSION [DBA_purpose] ON SERVER
    ADD EVENT sqlserver.database_file_size_change (
    ACTION ( sqlserver.client_app_name, 
     sqlserver.client_hostname, 
     sqlserver.database_name, 
     sqlserver.session_nt_username, 
     sqlserver.sql_text )
    WHERE ( [database_id] = ( 48 ) ) -- We filter on database_id= of target db
    )

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