# PowerPivot | Calculated columns exercise | Using SWITCH Function to Sum by Age Band

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.

 Software ==> PowerPivot  (75 exercises) Version ==> Excel 2010 and later Topic ==> Calculated columns  (7 exercises) Level ==> Average difficulty Subject ==> Power BI training
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The aim of this exercise is to divide staff up into 3 bands as follows:

Year of date of birth Description
Up to 1952 Old
Up to 1983 Middle-aged
Anything else Young

You should then use this to get a pivot table showing the average quantiy of goods in each transaction by age category:

There isn't much difference, making one wonder whether this is genuine data, or just randomly generated numbers? Surely Wise Owl wouldn't stoop so low?

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).

Now import the tblStaff, tblPos and tblTransaction tables.  In the staff table, create two new calculated columns:

Column name What it should contain
BirthYear The year in which this person was born.
AgeBand A verdict on the person's age, using the table above.

Use either a nested IF function to get the age band, or else (better) the SWITCH function.

Use this information to derive the pivot table at the start of this exercise.

Save your workbook as Age bands, then close it down.

You can unzip this file to see the answers to this exercise, although please remember this is for your personal use only.