Posts in: Subqueries and Sets
Combining Results with UNION in MySQL
The UNION operator combines results from two SELECT statements, removing duplicates. UNION ALL includes duplicates.
Read More →Subqueries in MySQL: Types and Usage
Learn about scalar, correlated, and inline subqueries for filtering, transformation, and comparison.
Read More →Set Operations: UNION, INTERSECT, and EXCEPT
Combine results from multiple queries using set operators: UNION, INTERSECT, and EXCEPT (MINUS).
Read More →