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Executing DBCC for SQL Server Analysis Services 2016

In the upcoming release of SQL Server Analysis Services 2016, one of the new features you’ll see is the ability to perform a database consistency check against your SSAS cubes and Tabular models. Just like in the database engine side of things, DBCC for SSAS checks for corruption across the entire database or individual objects within the database.

The DBCC command is shaped likes the XMLA Process command so there’s not a lot of complexity to it. Below here, you can see the basic syntax for the SSAS DBCC command. Its worthing noting that the syntax of the command will look the same whether you’re running it against an SSAS multidimensional database or Tabular model.

"http://schemas.microsoft.com/analysisservices/2003/engine">
    <Object>
        
        
        
        
    Object>

To run the DBCC command, just open a new MDX query window and use the code seen above. Enter in the IDs of your Database, cube, measure and/or partition.

When you’re running the DBCC command against a Tabular model, there are a couple things I’d like to point out.

In the element for the CubeID, you’ll need to specify the ID of the Model. And in the element for the MeasureGroupID, specify the ID for the table you want to check.

DBCC XMLA command for SSAS

If you want to check the whole database or model for consistency, simply remove the elements the lower elements. For example, if I wanted to check the whole model, I just would leave out the elements for MeasureGroupID and PartitionID.

To find the MeasureGroupID (Table ID) or PartitionID in a Tabular model, just navigate to the Properties for that object.

Find the SSAS Tabular MeasureGroup ID or Table ID

To find the Partition ID in a Tabular model, right click the table and select Partitions. Then highlight the partition you want to check and click the Settings icon.

Find the SSAS Tabular partition ID

If you run SQL Server Profiler against SSAS while executing the DBCC command, you can see the individual checking of the columns, tables, database and more.

SSAS Tabular Profiler trace DBCC

I also ran a trace against my SSAS 2016 OLAP instance to watch each segment of

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WHERE HAVE YOU BEEN, patrick leblanc????

Ok, so what have I been up to?  Well a lot has changed for me over the past couple of months, primarily my job.  Initially I wasn’t going to blog about this, but after a couple of conversations with a few well respected people in the SQL community I decided to write a post.  As many of you know I was a Business Intelligence Architect for Pragmatic Works, which was a great position.  That job catapulted my career into orbit, literally.  However, with the fast-paced I kind of lost myself.  I was given some advice when I started the position and that was, “You have to learn to say no”.  If you have met me in person or talked to me before, you know that I am one of the most laid back guys you will very meet, and saying no to a giving a presentation or helping out with a volunteer activity is not in my nature.  I enjoy speaking and giving back to the community.  Well as a consultant you constantly meet people that read your blog, books, and articles or attend your presentations.   Of course, if they ask me a question or to speak at their local user group, I would quickly say yes.  Because of this I quickly overwhelmed myself with work and community involvement.  Looking back over my calendar last year I gave more presentations (Online and In Person) than there are weeks in a year.

As a result, I decided to take a break from everything including work.  Over the past two-three weeks I have been home learning to cook, playing XBOX, Wii, going to the movies, taking my wife out on dates.  You get the picture.  In addition, I changed jobs.  You may have noticed by now that I have been referring to my job with Pragmatic Works in the past tense.  First I want to say that I did not leave the job because of any ill feelings or anything like that.  Pragmatic Works was one of the best jobs that I have ever had, and the people are awesome.  By the way they are hiring if you are looking for a job.  I left because I needed to learn to balance a job that required travel with my home life.  Travel is ok, but I need to take baby steps with it before I am ready to take on a full-time consulting job while maintaining a healthy family lifestyle.

So, where has all of this ended me?  I recently accepted a position with Microsoft.  I think this is going to be a great opportunity for me and my family.  I will be traveling, but at a level that will allow me to learn how to balance my life, work and community involvement.  I hope to maintain a healthy involvement in the SQL Server community.  I will be ramping up the SQL Lunch soon, so stay tuned for that.  What does the future have in store for me; well to be honest I am not quite sure.  For now, I am going to learn the ropes at Microsoft and learn everything that I can about SQL Server and the accompanying technologies.  If you want to contact me or ask me questions please feel free to email me at pleblanc@sqllunch.com.

Talk to you soon

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