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SQL Tutorials

SQL JOINs Explained: INNER, LEFT, RIGHT, and FULL — With Real Examples

Master every type of SQL JOIN with clear explanations and practical examples. Learn when to use INNER, LEFT, RIGHT, and...

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SQL Tutorials

SQL Aggregate Functions: A Complete Guide to COUNT, SUM, AVG, MIN, and MAX

Aggregate functions are essential for summarizing data in SQL. Learn how to use COUNT, SUM, AVG, MIN, and MAX with...

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