WISE OWL EXERCISES
POWER BI EXERCISES
- PowerPivot data models (7)
- Pivot tables using PowerPivot (2)
- Using Excel tables (3)
- Using other data sources (1)
- Transforming data (Power Query) (7)
- Calculated columns (7)
- Measures (2)
- The CALCULATE function (15)
- More advanced DAX functions (5)
- Calendars (1)
- Date functions (10)
- Hierarchies (2)
- KPIs (5)
- Power View (4)
- Power BI Desktop overview (3)
- Power BI Desktop maps (1)
PowerPivot | Transforming data (Power Query) exercise | Creating and using an UNPIVOT transform
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In a new Excel workbook, choose to import data from the workbook in the above folder:
Choose to import data as above.
Initially you have your work cut out:
There's a fair amount to do!
In Power Query choose to skip a row, and also to use the next one as column headers to get this:
Time now to unpivot this data ...
Select the decade columns, and choose to unpivot them to get:
You don't need the grand total any more, so delete the Grand Total column.
Rename columns as above, and filter the data to show only those countries and decades in which at least 5 films were made:
You should now have 43 rows.
You'll also thank yourself for changing the data type of the final column from Any to Number at this point, so that you can sum it later.
Load this data into PowerPivot, and create a pivot table based upon it like this:
The first 3 rows of the final pivot table.
Take a moment to wonder what you've achieved (!), then save this workbook as Repivot.xlsx.