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Software ==>	PowerPivot (72 exercises)
Topic ==>	The CALCULATE function (15 exercises)
Level ==>	Relatively easy
Subject ==>	Power BI training

Divide sales by 4 legs and other for a measure, using the FILTER function

This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.

Before you can do this exercise, you'll need to download and unzip this file .

To start, if you haven't already done so run the script in the above folder to generate the MAM database (not for commercial use or copying).

Create the following data model:

You'll need to import (deep breath) the Animal, Centre, Pos, Product, Quadrant, Region, Species, Store, Town and Transaction tables.

Use this to create the following basic pivot table:

This pivot tables shows total quantities sold by quadrant and species.

Add a measure which (you think) should give the total quantity sold for four-legged animals only:

=SUMX(FILTER(Animal,Animal[Legs]=4),'Transaction'[Quantity])

You should find this gives an error:

The start of the error message.

The problem is that you can't filter by one dimension but sum a column in another. To get round this, use the RELATED function to include the number of legs each animal has within the transactions table: