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#+title: SQL Joins
#+filetags: :sql:joins:database:


* The SQL JOIN Clause
The JOIN clause is used to combine rows from two or more tables, based on a related column between them.

Here are the different types of JOINs in SQL:

**(INNER) JOIN**: Returns only rows that have matching values in both tables
**LEFT (OUTER) JOIN**: Returns all rows from the left table, and only the matched rows from the right table
**RIGHT (OUTER) JOIN**: Returns all rows from the right table, and only the matched rows from the left table
**FULL (OUTER) JOIN**: Returns all rows when there is a match in either the left or right table