MAXDOP for DBCC CHECKDB, DBCC CHECKTABLE and DBCC CHECKFILEGROUP T-SQL Enhancement in SQL Server 2016

SQL Server 2016 brings MAXDOP settings, for DBCC CHECKDB, DBCC CHECKTABLE and DBCC CHECKFILEGROUP command. Database Administrators can leverage MAXDOP settings to above mentioned DBCC commands to achieve Max Degree of Parallelism.

This is Part 5 of 10 Part T-SQL Enhancements in SQL Server 2016 for Developers and DBAs. Click here to read it from the beginning….

SQL Server 2016 will continue to use the Max Degree of Parallelism (MAXDOP) value configured using SP_CONFIGURE system procedure if you specify MAXDOP value as ZERO for any of the DBCC CHECKDB, DBCC CHECKTABLE or DBCC CHECKFILEGROUP commands.

Syntax MAXDOP options in SQL Server 2016

DBCC CHECKDB 
	[ ( database_name | database_id | 0
		[ , NOINDEX 
		| , { REPAIR_ALLOW_DATA_LOSS | REPAIR_FAST | REPAIR_REBUILD } ]
	) ]
	[ WITH 
		{
			[ ALL_ERRORMSGS ]
			[ , EXTENDED_LOGICAL_CHECKS ] 
			[ , NO_INFOMSGS ]
			[ , TABLOCK ]
			[ , ESTIMATEONLY ]
			[ , { PHYSICAL_ONLY | DATA_PURITY } ]
			[ , MAXDOP = number_of_processors ]
		}
	]
]

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Example Usage of DBCC CHECKDB Using MAXDOP Settings in SQL Server 2016

DBCC CHECKDB ('MyTechMantra')
WITH ALL_ERRORMSGS, MAXDOP = 4
GO

Example Usage of DBCC CHECKTABLE Using MAXDOP Settings in SQL Server 2016

DBCC CHECKTABLE ('SchemaName.TableName') 
WITH PHYSICAL_ONLY, MAXDOP = 3 
GO 

Example Usage of DBCC CHECKFILEGROUP to Check Primary FileGroup Using MAXDOP Settings in SQL Server 2016

USE MyTechMantra
GO

DBCC CHECKFILEGROUP (1)
WITH ESTIMATEONLY, MAXDOP = 2 
GO

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• MAXDOP for DBCC CHECKDB, DBCC CHECKTABLE and DBCC CHECKFILEGROUP