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Providing detailed information and counting objects
Calculating metrics for multiple business objects
8. Products in stock per category
Understanding the difference between various count metrics


Good job! Let's try another exercise using computations for multiple objects.


How much are the products in stock in each category worth? Show three columns: category_id, category_name, and category_total_value. You'll calculate the third column as the sum of unit prices multiplied by the number of units in stock for all products in the given category.

Stuck? Here's a hint!

Calculate the third column as:

SUM(unit_price * units_in_stock) AS category_total_value