SQL Joins: Inner, Outer, Left, and Right Joins

SQL Fundamentals
DevOps.dev
Published in
3 min readFeb 20, 2024

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SQL (Structured Query Language) is a powerful tool for working with relational databases. When you need to combine data from multiple tables, SQL joins come into play. In this guide, we’ll explore the four fundamental types of SQL joins: inner, outer, left, and right joins, with code examples to help you understand how they work.

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Prerequisites

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