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Multiple metrics for a single object
Metrics for two groups
Ratios and percentages
Global vs. specific metrics
14. Summary


It's time to wrap things up! Let's review the concepts we've covered in this part:

  1. We can calculate multiple metrics for a given business object using multiple aggregate functions in a single query.
  2. We can use COUNT(CASE WHEN ...) multiple times in a single query to count objects in multiple groups.
  3. When calculating percentages, remember to cast one of the counts to the float type. You can also use the ROUND() function, like this:
    ROUND(CountShipped / CAST(CountAll AS float) * 100, 2) AS ShippedRatio

All right, how about a quiz before we move on?


Click Next exercise to continue.