WISE OWL EXERCISES
SSAS - TABULAR EXERCISES
SSAS - tabular | Changing query context exercise | Rank regions by number of sales using the RANKX function
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If you haven't already done so, run the SQL script in the above folder in SQL Server Management Studio to generate a database (not for commercial use or copying) called MAM.
Again if you haven't already done so, create a new project called BaseModel, and import the following tables: tblAnimal, tblCentre, tblCentreType, tblPos, tblProduct, tblQuadrant, tblRegion, tblSpecies, tblStore, tblTown, tblTransaction. Delete any measures already created.
Create a measure which ranks regions according to the count of the number of transactions. The syntax of the RANKX function is shown below:
Only the first two arguments are compulsory.
Use this measure to show the following pivot table (there's very little variety between species):
If your pivot table shows 1 in every cell, you're ranking the number of transactions within the current query context, rather than against all of the regions in the region table.
If you want to keep a copy of what you've done, use DAX Editor to create a copy of your measures with extension .dax called Suspiciously similar data, and save your workbook with the same file name.