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Software ==>	SSAS - tabular (30 exercises)
Topic ==>	Changing query context (2 exercises)
Level ==>	Average difficulty
Subject ==>	SSAS training

Use the RANKX function to order habitats by the number of purchases within each

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. Once you've done this:

Go into SQL Server Management Studio;
Open the SQL file you've just unzipped (you can press CTRL + O to do this); then
Execute this script.

This will generate the database that you'll need to use in order to do this exercise (note that the database and script are only to be used for exercises published on this website, and may not be reused or distributed in any form without the prior written permission of Wise Owl).

If you haven't already done so, create a new project called BaseModel, and import the following tables: Centre, CentreType, Environment, Family, Habitat, Product, Purchase, Region and Town.

Create a measure which ranks regions according to the count of the number of purchases. The syntax of the RANKX function is shown below:

Only the first two arguments are compulsory.

To start with, create a measure in the purchases table giving the number of purchases:

What this measure should show in your model.

Now create a measure in the Habitat table to rank habitats according to the number of purchases, and use this to create this pivot table:

Grasslands is always the habitat with the most purchases, regardless of centre type, and Urban the one with the fewest purchases.

The lack of variety between shopping centre types might be almost enough to make you suspect that the data was randomly generated, and not genuine.

Save this workbook as Suspiciously similar data, then close it down.

You can find other training resources for the subject of this exercise here:

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EXERCISE TOPIC

SSAS EXERCISES

SSAS - TABULAR EXERCISES

Use the RANKX function to order habitats by the number of purchases within each

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