A SQL JOIN lets you retrieve data from 2 or more tables in your database. In this video we give examples of 4 kinds of joins: INNER Joins, LEFT Joins, RIGHT Joins, and FULL Joins (also known as FULL OUTER Joins).
Stay tuned! Bonus features for this video are under development...
In this Introduction to SQL Course, you will learn the essential queries needed to work with a relational database: How to create data (INSERT), change existing data (UPDATE), and find data (SELECT and JOINs). You will also learn how to choose a database, install PostgreSQL, speed up queries with indexes, and more.