This project is designed to practice working with multiple related tables using joins, subqueries, and nested queries to answer complex business questions. It covers of SQL learning, focusing on ...

Subqueries and Nested Queries A subquery (also called inner query or nested query) is a query inside another SQL query. It is used to fetch data that will be used by the main (outer) query. 🔹 Types ...

A subquery is a query that is nested inside a SELECT , INSERT , UPDATE , or DELETE statement, or inside another subquery. ... A subquery can be used anywhere an expression is allowed. In this example ...