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 | The CALCULATE function exercise | Use EARLIER function to show number of previous joiners
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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).
Use the EARLIER function (it's in the manual!) to show the number of members of staff for each person who joined before that person did:
For example, 238 people joined before Gladstone Small.
Sort by date joined (A-Z and then Z-A) to check that:
- Akhlaq Aliyu (who joined first, on 10th May 1967) has 0 as the number of previous joiners; and
- Naeem O'Comain (who joined last, on 17th December 2008) has 2,279 previous joiners.
Too easy? Try creating another calculated column, and use sorting to show that Bob Cratchitt manages more staff than anyone else:
You'll need to add the ManagerId column to your table.
Self-referential calculations: don't you just love them! Save this workbook as Headspin, then close it down.