Power BI | Parameters exercise | Power BI Dynamic connection string

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 ==> Power BI  (84 exercises)
Version ==> Latest update
Topic ==> Parameters  (5 exercises)
Level ==> Harder than average
Subject ==> Power BI training
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In the above folder are 3 Excel files containing information about the tallest buildings in various countries. The aim is to be able to switch between viewing the top 10 from each file by changing to which file we are connecting:

Power BI Query Editor Dynamic Connection string

To start with either connect to the UK file from scratch, or else open the PBIX file in the above folder.

We need to store the location of each file in a parameter so we can switch between them. To do this, create a parameter and list the file names:

Power BI Query Editor Dynamic Connection string

This will create a drop down letting users choose which file to connect to.

Now access the Advanced Editor from the Home tab within Query Editor and replace the file name with your parameter:

Power BI Query Editor Dynamic Connection string

The & is used to concatenate the string connection with the value inside the parameter.

Exit Query Editor and then use Edit Parameters under Edit Queries to switch to a different file:

Power BI Query Editor Dynamic Connection string

You may need to click Apply changes to finish loading the data.


Optionally save this as Tall, Taller, Tallest and 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.
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