- Section 1: Basics
- 2: User-friendly language
- 3: Documents, not rows
- 4: Pattern matching with LIKE
- 5: Matching elements in nested arrays with ANY
- 6: Combining multiple conditions with AND
- 7: Querying primary keys
- 8: Quick review
- 9: Pagination with LIMIT and OFFSET
- 10: Filtering grouped data with HAVING
- 11. Review
- 12. Section 2: Joins
- 13. Joins
- 14. Joins
- 15. Exercise
- 16. Exercise
- 17. NEST
- 18. Chaining JOINs
- 19. Example
- 20. Array Comprehensions
- 21. Section 3: DML Statements
- 22. Nest
- 23. Nest
- 24. UNNEST
- 25. Filtering on nested data
- 26. Subquery
- 27. Subquery
- 28. Window Functions
- 29. Window Functions
- 30. UPDATE
- 31. Case Study I. E-Commerce
- 32. Shopper - Browsing products from page to page
- 33. Shopper - Listing product categories
- 34. Shopper - Browsing and searching for a product
- 35. Shopper - Listing products in a category
- 36. Shopper - Finding the most popular products in a category
- 37. Shopper - Browsing products and sorting results
- 38. Shopper - Shopping at a one-day sale
- 39. Shopper - Listing the top 10 best selling products
- 40. Shopper - Listing the highest rated products
- 41. Merchant - Preparing a purchase order
- 42. Merchant - Finding the most valued shoppers
- 43. Merchant - Reporting customers by region
- 44. Merchant - Reporting the active monthly customers
- 45. Merchant - Identifying non-performing products
- 46. Merchant - Generating the month-over-month sales report
- 47. Merchant - Big ticket orders
- 48. Case Study II . Social Game
- 49. Assembling and loading user profiles
- 50. Listing messages sent by a user
- 51. Generating scoreboards
In order to maintain an assortment of products that reflect customer
demand and inventory productivity, dimestore uses product reviews to
get a list of low rated products to be removed.
Mary, a category manager at dimestore has asked Judy to come up with a list of products that have average review score less than 1.
Run the query to find out which products have an average rating below 1.
Mary, a category manager at dimestore has asked Judy to come up with a list of products that have average review score less than 1.
Run the query to find out which products have an average rating below 1.
To run this example, click the button in the top right corner of the code editor.