Deals Of The Week - hours only!Up to 80% off on all courses and bundles.-Close

Wrap course as a gift

Prepare your gift and double-check it looks just right.

Form validation errors

Recipient's Name:
Recipient's Email:
Your Message (Optional):
Proceed to Checkout

Creating Basic SQL Reports in PostgreSQL

Introduction
Basic multi-level aggregation
Multi-level aggregation in groups
Multi-level aggregation with custom classification
Three or more aggregation levels
Summary
17. Question 2

Instruction

Very well done! On to the next question!

Exercise

Find the average order value (after discount) for each customer. Show the customer_id and avg_discounted_price columns.

Stuck? Here's a hint!