SQL Self Join

Date: 2021-10-26

This tutorial explains SQL self-joins, a technique using the INNER JOIN keyword to join a table to itself. It uses different aliases to treat the same table as two distinct entities. The tutorial provides a practical example using an employee table to illustrate how to retrieve data based on relationships within a single table. Setting up a database (e.g., using Docker) is briefly mentioned. SQL self-joins are useful for data analysis and data science applications. Downloadable SQL scripts are available.

Read more: https://examples.javacodegeeks.com/sql-self-join/