WISE OWL EXERCISES
POWER BI EXERCISES
POWER BI EXERCISES
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Power BI | Parameters exercise | Power BI Dynamic connection string
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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:
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:
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:
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:
You may need to click Apply changes to finish loading the data.
Optionally save this as Tall, Taller, Tallest and then close it down.