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The Basics of Creating Tables in SQL

Primary keys – the basics
1. Primary keys – Introduction
Single-column primary keys
Multi-column primary keys
NOT NULL
Review

Instruction

Hello and welcome to the second part of the course! In this part, you are going to learn about primary keys and NOT NULL columns. What are they? Let's find out!

Exercise

Take a closer look at the example code with our table movie. Do you see anything new? When you do, click the Run and check code button to create the table.

Stuck? Here's a hint!

Simply click the Run and check code button!