sql Coding Problems

All C# Programs — Data Structures 167 C# Programs — Strings 105 DSA — Dynamic Programming 105 DSA — Sorting 105 DSA — Graphs 105 C# Programs — Arrays 105 DSA — Trees 105 DSA — Stacks & Queues 105 DSA — Hashing 105 DSA — Two Pointers 105 DSA — Binary Search 105 DSA — Strings 105 DSA — Arrays 105 C# Programs — LINQ 104 C# Programs — Collections 103 C# Programs — Sorting 103 C# Programs — OOP 103 SQL Server — Aggregates & GROUP BY 101 C# Programs — Inheritance 101 SQL Server — JOINs 101 SQL Server — SELECT basics 101 SQL Server — Window functions 101 C# Programs — Interfaces 101 SQL Server — CTEs 101 SQL Server — T-SQL procedures 101 SQL Server — WHERE & filtering 101 SQL Server — DDL & constraints 101 SQL Server — Subqueries 101

2292 problems in this topic

#	Title	Topics	Acceptance	Pts	Difficulty
851	PostgreSQL GROUP BY HAVING #15	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	30	Medium	Solve
852	T-SQL AVG salary by department #15	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	20	Easy	Solve
853	Avg by category #16	SQL — Aggregates & GROUP BY sql coding-practice	—	40	Hard	Solve
854	MySQL AVG salary by dept #16	MySQL — Aggregates & GROUP BY mysql coding-practice	—	40	Hard	Solve
855	PostgreSQL GROUP BY HAVING #16	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	40	Hard	Solve
856	T-SQL AVG salary by department #16	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	30	Medium	Solve
857	Avg by category #17	SQL — Aggregates & GROUP BY sql coding-practice	—	30	Medium	Solve
858	MySQL AVG salary by dept #17	MySQL — Aggregates & GROUP BY mysql coding-practice	—	30	Medium	Solve
859	PostgreSQL GROUP BY HAVING #17	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	30	Medium	Solve
860	T-SQL AVG salary by department #17	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	40	Hard	Solve
861	Avg by category #18	SQL — Aggregates & GROUP BY sql coding-practice	—	30	Medium	Solve
862	MySQL AVG salary by dept #18	MySQL — Aggregates & GROUP BY mysql coding-practice	—	30	Medium	Solve
863	PostgreSQL GROUP BY HAVING #18	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	30	Medium	Solve
864	T-SQL AVG salary by department #18	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	30	Medium	Solve
865	Avg by category #19	SQL — Aggregates & GROUP BY sql coding-practice	—	40	Hard	Solve
866	MySQL AVG salary by dept #19	MySQL — Aggregates & GROUP BY mysql coding-practice	—	40	Hard	Solve
867	PostgreSQL GROUP BY HAVING #19	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	40	Hard	Solve
868	T-SQL AVG salary by department #19	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	20	Easy	Solve
869	Avg by category #20	SQL — Aggregates & GROUP BY sql coding-practice	—	30	Medium	Solve
870	MySQL AVG salary by dept #20	MySQL — Aggregates & GROUP BY mysql coding-practice	—	30	Medium	Solve
871	PostgreSQL GROUP BY HAVING #20	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	30	Medium	Solve
872	T-SQL AVG salary by department #20	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	30	Medium	Solve
873	Avg by category #21	SQL — Aggregates & GROUP BY sql coding-practice	—	30	Medium	Solve
874	MySQL AVG salary by dept #21	MySQL — Aggregates & GROUP BY mysql coding-practice	—	30	Medium	Solve
875	PostgreSQL GROUP BY HAVING #21	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	30	Medium	Solve
876	T-SQL AVG salary by department #21	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	40	Hard	Solve
877	Avg by category #22	SQL — Aggregates & GROUP BY sql coding-practice	—	40	Hard	Solve
878	MySQL AVG salary by dept #22	MySQL — Aggregates & GROUP BY mysql coding-practice	—	40	Hard	Solve
879	PostgreSQL GROUP BY HAVING #22	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	40	Hard	Solve
880	T-SQL AVG salary by department #22	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	30	Medium	Solve
881	Avg by category #23	SQL — Aggregates & GROUP BY sql coding-practice	—	30	Medium	Solve
882	MySQL AVG salary by dept #23	MySQL — Aggregates & GROUP BY mysql coding-practice	—	30	Medium	Solve
883	PostgreSQL GROUP BY HAVING #23	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	30	Medium	Solve
884	T-SQL AVG salary by department #23	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	20	Easy	Solve
885	Avg by category #24	SQL — Aggregates & GROUP BY sql coding-practice	—	30	Medium	Solve
886	MySQL AVG salary by dept #24	MySQL — Aggregates & GROUP BY mysql coding-practice	—	30	Medium	Solve
887	PostgreSQL GROUP BY HAVING #24	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	30	Medium	Solve
888	T-SQL AVG salary by department #24	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	30	Medium	Solve
889	Avg by category #25	SQL — Aggregates & GROUP BY sql coding-practice	—	40	Hard	Solve
890	MySQL AVG salary by dept #25	MySQL — Aggregates & GROUP BY mysql coding-practice	—	40	Hard	Solve
891	PostgreSQL GROUP BY HAVING #25	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	40	Hard	Solve
892	T-SQL AVG salary by department #25	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	40	Hard	Solve
893	Avg by category #26	SQL — Aggregates & GROUP BY sql coding-practice	—	30	Medium	Solve
894	MySQL AVG salary by dept #26	MySQL — Aggregates & GROUP BY mysql coding-practice	—	30	Medium	Solve
895	PostgreSQL GROUP BY HAVING #26	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	30	Medium	Solve
896	T-SQL AVG salary by department #26	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	30	Medium	Solve
897	Avg by category #27	SQL — Aggregates & GROUP BY sql coding-practice	—	30	Medium	Solve
898	MySQL AVG salary by dept #27	MySQL — Aggregates & GROUP BY mysql coding-practice	—	30	Medium	Solve
899	PostgreSQL GROUP BY HAVING #27	PostgreSQL — Aggregates & GROUP BY postgresql coding-practice	—	30	Medium	Solve
900	T-SQL AVG salary by department #27	SQL Server — Aggregates & GROUP BY sqlserver coding-practice	—	20	Easy	Solve

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Graph Valid Tree

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