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学ぶ Challenge: Get Minimum Price By Category | Section
Intermediate SQL
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bookChallenge: Get Minimum Price By Category

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The company needs to find the minimum price of a product from each category in order to organize a marketing campaign. They have assigned you this task!

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Your task is to obtain the minimum price for each product category. However, to provide customers with options, you need to retrieve only those categories where there are more than 5 different products.

Join two tables, aggregate the data, and use the HAVING clause. At the end, sort the result by the category_name in the ascending order.

Pay attention that in the response, you should have 2 columns: category_name and min_price. So don't forget to set aliases for these columns!

Brief Instructions

  • Retrieve the category.name column and the minimum value of the price column from the category table.
  • Assign the alias category_name to the first column and min_price to the second.
  • Join the product table on the common column category.id = product.category_id.
  • Group the data by category.name.
  • Use a HAVING clause with the condition COUNT(product.name) > 5.
  • Sort the results by category_name.

解答

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