Exercise: Use FILTER to show total quantity for quadrupeds separately

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The answer to the exercise will be included and explained if you attend the Wise Owl course listed below!

Category ==> PowerPivot 2010  (26 exercises)
Topic ==> FILTER and CALCULATE  (8 exercises)
Level ==> Relatively easy
Course ==>
Before you can do this exercise, you'll need to download and unzip this file (if you have any problems doing this, click here for help).

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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:

The data model needed

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:

Pivot table by quadrant and species

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:


You should find this gives an error:

Error message

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:

Leg count column

This is what your new column should look like.


Amend your measure and add another one to report on total quantity sold by quadruped and non-quadruped:

Sales by number of legs

The figures to watch are those for reptiles, since this species includes snakes (0 legs) and crocodiles (4 legs).

When you've got this working, save the workbook as Four legs good (you may well need it again soon!), and close it down.

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