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Software ==>	SSAS - tabular (30 exercises)
Topic ==>	Date calculations (3 exercises)
Level ==>	Relatively easy
Subject ==>	SSAS training

Use the SAMEPERIODLASTYEAR and DATEADD functions to calculate and show totals

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.

Import the wo_Calendar table (rename it as Calendar), and create a relationship via the purchase date column:

Link the calendar and purchase tables together by the purchase date.

Now create two new measures:

Measure	What it calculates
Same period last year	The total quantity sold for the same period as the current query context, but in the previous year (use SAMEPERIODLASTYEAR).
Two quarters ago	The total quantity sold for the corresponding dates two quarters ago (use DATEADD).

Add these measures to your pivot table to get:

Check that your figures make sense!

Save your workbook as Look back in anger, 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 SAMEPERIODLASTYEAR and DATEADD functions to calculate and show totals

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