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ICT-Hotlist Topic

Check your SQL server databases for errors.

Using the undocumented1 sp_MSforeachdb stored procedure it is very easy to run database checks on all of your SQL databases. Microsoft recommends that you periodically run DBCC CHECKDB with no options. How frequently you should perform these runs, depends on individual businesses and their production environments.
Just open a command window or create a (scheduled) batch file to run the command.
SQLCMD -q "EXECUTE master.sys.sp_MSforeachdb 'USE [?]; DBCC CHECKDB'" | FindStr "CHECKDB Found"

What it does:

It uses the standard Microsoft SQL-server command line interface SQLCMD to start a T-SQL query on the local database server with the credentials of the currently logged on user. (see other options of SQLCMD when you need to specify user information and/or server name)
The command then uses the undocumented1 stored procedure sp_MSforeachdb to loop through all the databases. (The current or specified user must have the appropriate rights to access the database)
Next the DBCC CHECKDB command is started using the name of the current database. Finally the FindStr command accepts all the SQL-server messages and filters out all the lines that contain the error status message.

Example output:

CHECKDB found 0 allocation errors and 0 consistency errors in database 'master'.
CHECKDB found 0 allocation errors and 0 consistency errors in database 'mssqlsystemresource'.
DBCC CHECKDB will not check SQL Server catalog or Service Broker consistency because WITH TABLOCK was specified.
CHECKDB found 0 allocation errors and 0 consistency errors in database 'tempdb'.
CHECKDB found 0 allocation errors and 0 consistency errors in database 'model'.
CHECKDB found 0 allocation errors and 0 consistency errors in database 'msdb'.
CHECKDB found 0 allocation errors and 0 consistency errors in database 'ReBaUp'.
In the rare occasion that an error is reported, run the DBCC CHECKDB command on the specific database to see all the details.

SQLCMD error

If you get error "HResult 0x2, Level 16, State 1 Named Pipes Provider: Could not open a connection to SQL Server [2]." running the SQLCMD on your system, try these tips:
1Of course undocumented implies unsupported and that there is no guarantee about whether the procedure will exist in future versions of SQL-Server. So, use at your own risk and discretion.
Available in:
  • SQL-Server 7.0 (Unsupported)
  • SQL-Server 2000 (Unsupported)
  • SQL-Server 2005
  • SQL-Server 2008
  • SQL-Server 2008R2
  • SQL-Server 2012
  • SQL-Server 2014
  • SQL-Server 2016
  • SQL-Server 2017
  • SQL-Server 2019
  • SQL-Server 2022
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