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Stairway to MDX - STEP 1: Getting Started with MDX


Stairway to MDX - STEP 1: Getting Started with MDX

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MWise
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I've relied on Mr. Pearson's Database Journal MDX and SSRS series for a while now, so I'm thrilled to see this series here - especially since it is targetted to 2008R2. About 90% of our reporting system uses SSRS to query cubes and I end up having to troubleshoot and clean up a lot of MDX that comes out of the GUI query designer in SSRS. I've love to see an article that takes on that topic.

Thanks,
MWise



Toby White
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Great article! I am looking forward to the future articles in the series. I wonder if power-pivot deals adequately with rendering axis beyond the second in excel. I worked with Proclarity back in 2005 and it had great rendering and building capability. I wrote a lot of MDX back then with functions, named sets, calculated members etc. However, being that I had to figure it out on my own I didn't do a great job of classifying it in my mind in a way that I could remember. I remember some of the functions being very counter intuitive and I am hopeful that this series will give me a better way to think about them.
Thomas LeBlanc
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Thanks for the series Bill.

Thanks,
Thomas LeBlanc
TheSmilingDBA

Thomas LeBlanc, MCITP DBA 2005, 2008 & MCDBA 2000
http://thesmilingdba.blogspot.com/
amenjonathan
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Just about to cube a new warehouse, so this couldn't have come at a better time! Thanks!

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Anipaul
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Nice intro.. good to read.



pauln
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I'm having a problem with getting the cubes setup. I deployed the Adventure Works DW 2008 SE to my local machine and when I connect to the Analysis Server I can see the Adventure Works DW 2008R2 SE database. And I can drill down and see the Adventure Works cube, and drill further I see Measure Groups.

But when I highlighted the AW cube and clicked New Query I get a message: "Error loading metadata. No cubes were found". So I clicked the Process and get an error 'The datasource, "Adventure Works DW', contains an ImpersonationMode that is not supported for processing operations."

This is the same set of errors I was getting when I initially tried to deploy from BIDS. I found a post on here about this and changed the Deployment option to 'Do not process' and the Impersonation Information of the Data Source to 'Use the credentials of the current user'.

What security settings do I need to process these cubes?

*************************************************************************************

Well, one of the errors from some setting on the Inheritance tab referred to NT Network Authority. So, I gave that account db_owner on the AWDW2008R2 and I was able to process the project in BIDS. And I have items in the Measure Group of the query window.

Now the question is whether I have to always give NT AUTHORITY\NETWORK SERVICE db_owner rights to the databases I want to participate in AS?

Thanks.
MWise
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You should be able to limit the access to read only of the tables you need to build your cube.



pauln
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Mhlewis (5/25/2011)
You should be able to limit the access to read only of the tables you need to build your cube.


But it will be necessary to give the NT AUTHORITY\NETWORK SERVICE access to the underlying database? Can't some other account be used for this?
YSLGuru
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Newbie Question

I was referenced this series by a post on the forums but after reading the highlights (not the article in full) I'm not sure this is the right starting point.

I am familiar with BI in the buzz words and some terms but all of my DB experience has been on the relational model side and not in Data warehouses or Cubes and certainly not MDX. I inquired about the Date Warehouse/Model/Cube business because I thought it might provide a solution for reporting performance issues we have but now I'm not so sure. Part of my problem is that I believe many of the BI terms like Data MArt and Data Warehouse have been misused by others I have listened to and so I have the incorrect idea of what these are and how they work.

Is there any non-BI guru overview of ANALYSIS SEVICES and when/why/how to use it and how it relates to the traditional relation database model?


Thanks

Kindest Regards,

Just say No to Facebook!
abhij33t
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SELECT
{[Date].[Calendar].[Calendar Quarter].&[2007]&[1],
[Date].[Calendar].[Calendar Quarter].&[2007]&[2] } ON AXIS (0),
[Reseller].[Reseller Type].[All Resellers] ON AXIS (1)
FROM [Adventure Works]
where [Measures].[Reseller Sales Amount]

and

SELECT
{[Date].[Calendar].[Calendar Quarter].&[2007]&[1],
[Date].[Calendar].[Calendar Quarter].&[2007]&[2] } ON AXIS (0),
[Reseller].[Reseller Type].[All Resellers] ON AXIS (1)
FROM [Adventure Works]

give me same result. Can somebody explain why ?
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