Understanding Independent Subqueries in SQL
Definition of Subqueries
A subquery occurs when one SQL statement contains multiple SELECT clauses. Consider this example:
-- Example introducing subqueries:
-- Find all employees with higher salaries than "JONES"
-- Step 1: Get JONES's salary
SELECT salary FROM staff WHERE name = 'JONES'; -- Returns 2975
-- Step 2: Find all employe ...
Posted on Fri, 08 May 2026 08:45:14 +0000 by Destramic