Mon, 08 Dec 2025 05:56:09 +0000

SQL is a language that lets us ask questions to these tables.
In this tutorial you will learn three tricks: (a) Joining two tables with a WHERE condition (an “equi-join”), (b) Using a subquery to find something like “the biggest customer id”, (c) Using a self-join with aliases to compare a table with itself.: https://medium.com/@rabelcatayoc/how-mysql-tables-talk-kid-friendly-lessons-on-the-where-clause-e94fd34fbfa2