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SQL Detective Mode: Using DENSE_RANK to Identify Top Earners by Department#185: Department Top Three Salaries — A LeetCode challenge solved with window functions and clean CTE logic.Aug 27, 2025·2 min read
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SQL Detective Mode: Using CTE + DENSE_RANK() to Find Top Earners by DepartmentLeet code #184: Department-Wise Highest Salary — A clean, scalable query to uncover top-paid employees using window functions. 🧠 Problem Statement You're given two tables—Employee and Department—and asked to find the highest-paid employee(s) in each...Aug 27, 2025·2 min read
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📧 SQL Detective Mode: Spotting Duplicate Emails in the SystemMastering GROUP BY & Subqueries to Uncover Redundant Records in Relational TablesAug 26, 2025·2 min read