joins Coding Problems

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

255 problems in this topic

#	Title	Topics	Acceptance	Pts	Difficulty
151	MySQL INNER JOIN dept names #37	MySQL — JOINs mysql coding-practice	—	40	Hard	Solve
152	PostgreSQL JOIN with alias #37	PostgreSQL — JOINs postgresql coding-practice	—	40	Hard	Solve
153	T-SQL INNER JOIN departments #37	SQL Server — JOINs sqlserver coding-practice	—	40	Hard	Solve
154	Join exercise #38	SQL — JOINs sql coding-practice	—	30	Medium	Solve
155	MySQL INNER JOIN dept names #38	MySQL — JOINs mysql coding-practice	—	30	Medium	Solve
156	PostgreSQL JOIN with alias #38	PostgreSQL — JOINs postgresql coding-practice	—	30	Medium	Solve
157	T-SQL INNER JOIN departments #38	SQL Server — JOINs sqlserver coding-practice	—	30	Medium	Solve
158	Join exercise #39	SQL — JOINs sql coding-practice	—	30	Medium	Solve
159	MySQL INNER JOIN dept names #39	MySQL — JOINs mysql coding-practice	—	30	Medium	Solve
160	PostgreSQL JOIN with alias #39	PostgreSQL — JOINs postgresql coding-practice	—	30	Medium	Solve
161	T-SQL INNER JOIN departments #39	SQL Server — JOINs sqlserver coding-practice	—	20	Easy	Solve
162	Join exercise #40	SQL — JOINs sql coding-practice	—	40	Hard	Solve
163	MySQL INNER JOIN dept names #40	MySQL — JOINs mysql coding-practice	—	40	Hard	Solve
164	PostgreSQL JOIN with alias #40	PostgreSQL — JOINs postgresql coding-practice	—	40	Hard	Solve
165	T-SQL INNER JOIN departments #40	SQL Server — JOINs sqlserver coding-practice	—	30	Medium	Solve
166	Join exercise #41	SQL — JOINs sql coding-practice	—	30	Medium	Solve
167	MySQL INNER JOIN dept names #41	MySQL — JOINs mysql coding-practice	—	30	Medium	Solve
168	PostgreSQL JOIN with alias #41	PostgreSQL — JOINs postgresql coding-practice	—	30	Medium	Solve
169	T-SQL INNER JOIN departments #41	SQL Server — JOINs sqlserver coding-practice	—	40	Hard	Solve
170	Join exercise #42	SQL — JOINs sql coding-practice	—	30	Medium	Solve
171	MySQL INNER JOIN dept names #42	MySQL — JOINs mysql coding-practice	—	30	Medium	Solve
172	PostgreSQL JOIN with alias #42	PostgreSQL — JOINs postgresql coding-practice	—	30	Medium	Solve
173	T-SQL INNER JOIN departments #42	SQL Server — JOINs sqlserver coding-practice	—	30	Medium	Solve
174	Join exercise #43	SQL — JOINs sql coding-practice	—	40	Hard	Solve
175	MySQL INNER JOIN dept names #43	MySQL — JOINs mysql coding-practice	—	40	Hard	Solve
176	PostgreSQL JOIN with alias #43	PostgreSQL — JOINs postgresql coding-practice	—	40	Hard	Solve
177	T-SQL INNER JOIN departments #43	SQL Server — JOINs sqlserver coding-practice	—	20	Easy	Solve
178	Join exercise #44	SQL — JOINs sql coding-practice	—	30	Medium	Solve
179	MySQL INNER JOIN dept names #44	MySQL — JOINs mysql coding-practice	—	30	Medium	Solve
180	PostgreSQL JOIN with alias #44	PostgreSQL — JOINs postgresql coding-practice	—	30	Medium	Solve
181	T-SQL INNER JOIN departments #44	SQL Server — JOINs sqlserver coding-practice	—	30	Medium	Solve
182	Join exercise #45	SQL — JOINs sql coding-practice	—	30	Medium	Solve
183	MySQL INNER JOIN dept names #45	MySQL — JOINs mysql coding-practice	—	30	Medium	Solve
184	PostgreSQL JOIN with alias #45	PostgreSQL — JOINs postgresql coding-practice	—	30	Medium	Solve
185	T-SQL INNER JOIN departments #45	SQL Server — JOINs sqlserver coding-practice	—	40	Hard	Solve
186	Join exercise #46	SQL — JOINs sql coding-practice	—	40	Hard	Solve
187	MySQL INNER JOIN dept names #46	MySQL — JOINs mysql coding-practice	—	40	Hard	Solve
188	PostgreSQL JOIN with alias #46	PostgreSQL — JOINs postgresql coding-practice	—	40	Hard	Solve
189	T-SQL INNER JOIN departments #46	SQL Server — JOINs sqlserver coding-practice	—	30	Medium	Solve
190	Join exercise #47	SQL — JOINs sql coding-practice	—	30	Medium	Solve
191	MySQL INNER JOIN dept names #47	MySQL — JOINs mysql coding-practice	—	30	Medium	Solve
192	PostgreSQL JOIN with alias #47	PostgreSQL — JOINs postgresql coding-practice	—	30	Medium	Solve
193	T-SQL INNER JOIN departments #47	SQL Server — JOINs sqlserver coding-practice	—	20	Easy	Solve
194	Join exercise #48	SQL — JOINs sql coding-practice	—	30	Medium	Solve
195	MySQL INNER JOIN dept names #48	MySQL — JOINs mysql coding-practice	—	30	Medium	Solve
196	PostgreSQL JOIN with alias #48	PostgreSQL — JOINs postgresql coding-practice	—	30	Medium	Solve
197	T-SQL INNER JOIN departments #48	SQL Server — JOINs sqlserver coding-practice	—	30	Medium	Solve
198	Join exercise #49	SQL — JOINs sql coding-practice	—	40	Hard	Solve
199	MySQL INNER JOIN dept names #49	MySQL — JOINs mysql coding-practice	—	40	Hard	Solve
200	PostgreSQL JOIN with alias #49	PostgreSQL — JOINs postgresql coding-practice	—	40	Hard	Solve

Problem of the day

Minimum Interval to Include Each Query

Hard · +15 pts

Solve today

Weekly leaderboard

View all

Be the first to climb the board this week.

Company sheets

Toolliyo unique — practice by hiring company.

Google Amazon Microsoft Meta Apple Netflix TikTok LinkedIn Nvidia Uber

Browse all companies

Interview path

DSA Interview 150 All roadmaps 3,700+ Interview Q&A

Problems explorer