SQL Joins let you fetch data from 2 or more tables in your database. We will cover the more common types of Joins: Inner Joins, Left Joins, Right Joins, and Full Joins (also called ‘Full Outer Joins’). We will introduce these 4 kinds of Joins and prepare you for our next video where we will cover many examples.
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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.