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Questions tagged [dac]

Dedicated Admin Console (DAC) a reserved connection on SQL Server that grants special access to system tables and can help diagnose problems

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1answer
253 views

How do I know what requires DAC?

Playing around with SQL Server, I came across a semi-cryptic error. Essentially, I only need to log into DAC. Is there any general advice for when DAC is needed? How do I know I need it to access sys....
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1answer
962 views

How do we find who used Dedicated Admin Connection

Is there any way to find who used Dedicated Admin Connection? Not active connection but the previous one which is already closed?
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2answers
2k views

DAC connection error

I'm having a problem connecting using my dedicated admin connection in SQL Server 2014. I just wanted to test it out. I have DAC enabled in sp_configure. I have performed RECONFIGURE. I have ...
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1answer
176 views

SQL Server Error “Database 'mssqlsystemresource' does not exist.”

On Linux, whenever I run use mssqlsystemresource to get access to Resource Database, I get an error. How do I resolve this. 1> use mssqlsystemresource 2> go Msg 911, Level 16, State 1, Server ...
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1answer
4k views

Why am I getting “Invalid object name 'sys.sysobjvalues'.” [duplicate]

When I run SELECT OBJECT_DEFINITION(OBJECT_ID('sys.assembly_files')); I can see that there is a self-join on sys.sysobjvalues, but when I try to select that table I get, Msg 208, Level 16, State 1,...