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.

<DBCC xmlns="http://schemas.microsoft.com/analysisservices/2003/engine">

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 the partitions being checked.

SSAS Profiler trace DBCC

DBCC for multidimensional validates metadata, segment statistics and indexes and looks for physical corruption while DBCC for Tabular checks segments, dictionaries, column stats and compression.


For the total lowdown on DBCC for SSAS, check this out. Scroll down to the bottom to see a list of the errors related to DBCC and their resolutions.

Taking #PowerPivot to the Next Level

Power Pivot is an amazing, flexible and powerful business intelligence tool (among other things) and there is no doubt about that fact. As a feature included with Excel 2013 and 2016 (and an add-on for Excel 2010), Power Pivot allows user with a little technical expertise to integrate disparate data source together within a flexible data model. Once the data is loaded into Power Pivot, we easily have the ability to create powerful calculated measures, key performance indicators Continue reading Taking #PowerPivot to the Next Level

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image Thank you to everyone that registered and attended my webinar Designing your Data Warehouse from the Ground Up webinar this past Tuesday. And I’d also like to give a special thanks to my good friend, Mitchell Pearson (b|t), for helping me present this webinar. We had a great time!

Also, thank to everyone that tuned into the live broadcast of the webinar on Periscope! I hope you enjoyed the unique perspective Periscope gives.

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Power BI Desktop Scatter Chart

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New to Power BI Desktop? Start here!

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Configure the Excel Power Refresh Task in SSIS

Configuring the Excel Power Refresh Task is pretty straightforward. There’s not a lot of complexity to this component, which is a good thing.

First create a Connection Continue reading Refreshing Excel Power Query & Pivot Tables with SSIS and Task Factory

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Dustin Ryan is an MSBI consultant, trainer, speaker & author specializing in data warehousing, SSAS, SSIS, SSRS, Power BI and SharePoint


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