Meet the JOIN Family
Explore how to use SQL JOINs to connect data across tables, starting with INNER JOIN and progressing through LEFT, RIGHT, and FULL JOIN types. Understand the purpose of each join to combine related records and preserve unmatched data, essential for creating comprehensive queries and real-world applications.
We'll cover the following...
We'll cover the following...
Databases love relationships, and JOIN lets you pull data from multiple tables at once. This is how real apps connect people to orders, students to grades, or users to posts.
Goal
You’ll aim to:
Understand what a
JOINdoes.Learn the main types:
INNER JOIN,LEFT JOIN,RIGHT JOIN...