Microsoft Power BI Data Analyst Practice Question

Your Power BI data model contains an imported table named Sales. Each row represents a single transaction, but some historic rows contain a blank value in the OrderID column. You must add a measure called Total Transactions that returns the count of all rows-regardless of blanks-while using the most efficient single-aggregation function available. Which DAX expression should you create?

  • Total Transactions = COUNTA(Sales[OrderID])

  • Total Transactions = DISTINCTCOUNT(Sales[OrderID])

  • Total Transactions = COUNT(Sales[OrderID])

  • Total Transactions = COUNTROWS(Sales)

Microsoft Power BI Data Analyst
Model the Data
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