Lesson 17

Introduction to JOINs

Understand why JOINs exist and how they combine rows from multiple tables.

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Editor note: Add your concept explanation here, followed by \\\sql code examples, then \\\exercise blocks using the standard format.

sql

-- Add your example queries here
SELECT * FROM customers;

Exercise 1 Easy

Your practice question here.

Hint: Optional hint text

Solution

SELECT * FROM customers