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.

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Subqueries in MySQL: Types and Usage

Learn about scalar, correlated, and inline subqueries for filtering, transformation, and comparison.

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Set Operations: UNION, INTERSECT, and EXCEPT

Combine results from multiple queries using set operators: UNION, INTERSECT, and EXCEPT (MINUS).

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