Parallel CHECKDB

Kevin Feasel

2017-12-19

DBCC

Arun Sirpal shows us when DBCC CHECKDB can go parallel:

DBCC CHECKDB has the ability to perform parallel checking of objects. However, it absolutely depends on the edition of SQL Server, it only happens when using enterprise edition.

Let’s see this in action. I propose the following tests for this blog post:

  • Test on a SQL Server Enterprise Edition.
  • Test on a non-enterprise edition of SQL Server.

I don’t have 2017 Enterprise at hand but I do have 2014 Enterprise and Express handy so it makes sense to use these versions for my “experiment”.

Read on to see the difference.

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Running DBCC CHECKTABLE

Kevin Feasel

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Arun Sirpal covers DBCC CHECKTABLE: If you know about DBCC CHECKDB then most likely you will know about DBCC CHECKTABLE. Quite simply this command performs primitive system-catalog consistency checks, per-table consistency checks on the single table specified, and cross-table consistency checks on indexed views that refer­ence the specified table. (Page 899 Microsoft SQL Server Internals […]

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CHECKDB On Azure SQL Database

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Arun Sirpal ponders running DBCC CHECKDB on Azure SQL Database: I was exchanging messages with Azure Support and even though I didn’t get a concrete answer to confirm this I ended up asking the question within a Microsoft based yammer group and yes they do automatically carry out consistency checks. This is great but it […]

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