Topic 9624 min readStructured Tutorial
MySQL SELF JOIN Tutorial
Quick Answer
A SELF JOIN in MySQL is a regular join where a table is joined with itself to compare rows within the same table. It is useful for querying hierarchical data or finding relationships between rows in the same table.
Learning Objectives
- Understand what a SELF JOIN is and when to use it.
- Write MySQL queries using SELF JOIN syntax.
- Apply SELF JOIN to solve hierarchical and relational data problems.
Introduction
In MySQL, a SELF JOIN is a powerful technique where a table is joined with itself.
This allows you to compare rows within the same table, which is useful for hierarchical or relational data.
A SELF JOIN is simply a regular join, but the table is joined with itself.
