Solved

MDX Expression for a Cube

Posted on 2012-04-10
2
480 Views
Last Modified: 2012-04-26
I have a fact table with the following structure:
DateID
BuyerID
SellerID
Amount

Both BuyerID and SellerID are UserID, meaning a user can be both a Buyer and a Seller.  Moreover, a Buyer can sell something to himself.  In this case, BuyerID and SellerID are the same.

Now this structure has been converted to a cube.  I want to create an Calculation member to show the total Amount of sales of a single user.  This amount should NOT include those Amount Sales that has the same BuyerID and SellerID (whatever the user sells to himself shouldn't be counted into the Total Amount of sales of the user).

How can I create this Calculation member?  Thanks.
0
Comment
Question by:thomaszhwang
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 15

Accepted Solution

by:
Tim Humphries earned 500 total points
ID: 37831958
Hi,

It would help if you posted the structures of the user hierarchies you have created. In the absence of these I will make some assumptions:

As you have User id acting in two roles I'll assume that you have hierarchies similar to:

[User].[Seller] and
[User].[Buyer] related to the fact table

I'll take the Amount as being [Measures].[Sales Amount]

As you want the Sales, then I'll assume that in your query you have [User].[Seller].Members on rows - this is important as we need to know  the Seller.Currentmember

You should then be able to use a calculation similar to:

MEMBER [Measures].[Seller Only Amount] As [Measures].[Sales Amount] - ([Measures].[Sales Amount], LINKMEMBER([User].[Seller].CURRENTMEMBER, [User].[Buyer]))

This should find the sales associated with the user as a buyer in the current tuple where the user is the seller i.e. where the user is both buyer and seller.


Tim
0
 

Author Closing Comment

by:thomaszhwang
ID: 37900437
Thanks.
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Slowly Changing Dimension Transformation component in data task flow is very useful for us to manage and control how data changes in SSIS.
I have a large data set and a SSIS package. How can I load this file in multi threading?
Using examples as well as descriptions, and references to Books Online, show the documentation available for datatypes, explain the available data types and show how data can be passed into and out of variables.
Viewers will learn how to use the UPDATE and DELETE statements to change or remove existing data from their tables. Make a table: Update a specific column given a specific row using the UPDATE statement: Remove a set of values using the DELETE s…

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question