On January 10, 2026 at 9:00 AM UTC the platform will be unavailable for 120 minutes due to planned maintenance break.
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

Recursive Queries in MS SQL Server

Introduction
3. The Employee table
Quiz
Summary

Instruction

Great! Let's take a look at another table.

Exercise

Select all the information from the table Employee.

Each employee has a unique Id, a first and last name, and the an ID for their superior. The person with a NULL SuperiorId is the boss.