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shenhsu's avatar
shenhsu
Copper Contributor
Jul 19, 2023

Is it possible to find out who change the restrict access in SQL Log?

Hello all,   we have newly installed a SQL 2022 Server with database version 16.0.4055.4.   Somehow the restrict access will be automatically changed from MULTI_USER to SINGLE_USER. And therefore...
olafhelper's avatar
olafhelper
Bronze Contributor
Jul 21, 2023
SQL Server started in single-user mode.

shenhsu , by default SQL Server start in multi-user mode. Only an admin change change stettings, so the anser is: It was an admin.

shenhsu's avatar
shenhsu
Copper Contributor
Jul 21, 2023

olafhelper 

 

Hello Olaf, 

 

thank you for your reply. 

I found out that the Database was changed automatically in to single_user modus directly after the installation of DB patches. 

 

So it is like after installation of a new patch, every service got shutted down and the SQL Server restart in a single user modus with the message "SQL Server wurde im Einzelbenutzermodus gestartet. Diese Meldung dient nur zu Informationszwecken. Es ist keine Benutzeraktion erforderlich. (SQL Server started in single user mode. This message is for informational purposes only. No user action is required.)"

  • Ben_Miller_DBADuck's avatar
    Ben_Miller_DBADuck
    MVP
    Jul 22, 2023
    When installing SQL patches, SQL Server may start in SINGLE user mode to apply patches, but it should not remain in SINGLE user mode after the patches are fully applied.
    • shenhsu's avatar
      shenhsu
      Copper Contributor
      Jul 25, 2023

      Ben_Miller_DBADuck 

       

      Thank you for the information. I noticed sometimes it remains but sometimes not.

      But the main thing is that I know where the problem is. 

      Thank you 🙂 

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