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

Window Functions

Introduction
2. Table doctor
Final quiz
Summary

Instruction

For the purpose of this final quiz, we have prepared two tables for you that have been taken from the database of a health clinic. Let's get to know them.

Exercise

Select all the information from the doctor table.

Each doctor has an id, first and last name as well as their age.