What are Primary Keys - A Video Quiz

Primary keys are one of the fundamental database constraints.
But how much do you know about them?
Take this video quiz to find out!
Need help with SQL? Ask us over on AskTOM: asktom.oracle.com
Twitter: / chrisrsaxon
Daily SQL Twitter tips: / sqldaily
All Things SQL blog: blogs.oracle.com/sql/
Take SQL Quizzes on the Oracle Dev Gym: devgym.oracle.com/
============================
The Magic of SQL with Chris Saxon
Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.