DBCC CHECKDB Troubleshooting SQL Server Database Corruption

USE Master;
GO
ALTER DATABASE TSQL2012
SET SINGLE_USER
WITH ROLLBACK IMMEDIATE;
GO
DBCC CHECKDB (TSQL2012, REPAIR_REBUILD)
GO
ALTER DATABASE TSQL2012
SET MULTI_USER;
GO

Copy the command below and paste to the query session putting in the correct database name:

--Command below performs a Database repair not allowing Data loss

USE Master;
GO
ALTER DATABASE TSQL2012
SET SINGLE_USER
WITH ROLLBACK IMMEDIATE;
GO
DBCC CHECKDB (TSQL2012,REPAIR_REBUILD)
GO
ALTER DATABASE TSQL2012
SET MULTI_USER;
GO

       2. REPAIR_ALLOW_DATA_LOSS: Command below performs database repair and may result in data loss to complete the repair process.

--Command below performs a database repair that may result in data loss,
 --replace TSQL2012 with the database name of database being repaired
USE Master
GO
ALTER DATABASE TSQL2012
SET SINGLE_USER
WITH ROLLBACK IMMEDIATE
GO
DBCC CHECKDB (TSQL2012, REPAIR_ALLOW_DATA_LOSS)
GO
ALTERDATABASE TSQL2012
SET MULTI_USER
GO

Copy the command below and paste to the query session putting in the correct database name:

Commands below are useful if database physical disk space is running low.

--Command below estimates the size TEMPDB must be to complete the DBCC CHECKDB job
USE Master;
GO
ALTER DATABASE TSQL2012
SET SINGLE_USER
WITH ROLLBACK IMMEDIATE;
GO
DBCC CHECKDB (TSQL2012, REPAIR_REBUILD)
WITH ESTIMATEONLY;
GO
ALTER DATABASE TSQL2012
SET MULTI_USER
GO

Copy the command below and paste to the query session putting in the correct database name:

--Command below estimates the size TEMPDB must be to complete the DBCC CHECKDB job

USE Master;
GO
ALTER DATABASE TSQL2012
SET SINGLE_USER
WITH ROLLBACK IMMEDIATE;
GO
DBCC CHECKDB (TSQL2012, REPAIR_REBUILD)
WITH ESTIMATEONLY;
GO
ALTER DATABASE TSQL2012
SET MULTI_USER
GO

--Command below will run DBCC CHECKDB without using TEMDB and creating a DB 
--snapshot. When not using TEMPDB with a DB snapshot all data will be checked in
-- the live database not not a database snapshot.

USE Master;
GO
ALTER DATABASE TSQL2012
SET SINGLE_USER
WITH ROLLBACK IMMEDIATE;
GO
DBCC CHECKDB (TSQL2012, REPAIR_REBUILD)
WITH TABLOCK;
GO
ALTER DATABASE TSQL2012
SET MULTI_USER
GO

Copy the command below and paste to query session and put in the correct database name:

--Command below will run DBCC CHECKDB without using TEMPDB and creating a DB 
--snapshot. When not using TEMPDB with a DB snapshot all data will be checked in ---the live database not a database snapshot.

USE Master;
GO
ALTER DATABASE TSQL2012
SET SINGLE_USER
WITH ROLLBACK IMMEDIATE;
GO
DBCC CHECKDB (TSQL2012, REPAIR_REBUILD)
WITH TABLOCK;
GO
ALTER DATABASE TSQL2012
SET MULTI_USER
GO