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aggregation-function

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Ak-Rajak / SQL-with-Problem-Solving

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🚀 Complete SQL solutions from HackerRank challenges that earned me a 5⭐ rating! Features 45+ problems covering basic queries to advanced topics like window functions, complex joins, string manipulation & mathematical operations. Perfect for SQL mastery & database interview prep! 🗄️✨

mysql sql database postgresql hackerrank joins coding-interviews subqueries mathematical-programming aggregation-function string-function
  • Updated Oct 9, 2025
  • TSQL

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