September 2017
Intermediate to advanced
802 pages
37h 6m
English
Content preview from Microsoft Power BI Cookbook
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Fact table column eliminations
For import data models, you can remove a column that represents a simple expression of other columns from the same table. For example, if the Extended Amount column is equal to the multiplication of the Unit Price and Order Quantity columns, you can choose to only import these two columns.
Figure 70: DAX Measure Replacement for Column
The DAX SUMX() function computes the same result as a sum of the column and can be parallelized by the storage engine. This approach is not recommended for DirectQuery models.
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