SQL 45
Easy
- 1407. Top Travellers
- 1527. Patients With a Condition
- 1667. Fix Names in a Table
- 1179. Reformat Department Table
- 1084. Sales Analysis III
- 511. Game Play Analysis I
- 1795. Rearrange Products Table
- 1693. Daily Leads and Partners
- 175. Combine Two Tables
- 181. Employees Earning More Than Their Managers
- 182. Duplicate Emails
- 183. Customers Who Never Order
- 1581. Customer Who Visited but Did Not Make Any Transactions
- 1965. Employees With Missing Information
- 196. Delete Duplicate Emails
- 197. Rising Temperature
- 1587. Bank Account Summary II
- 584. Find Customer Referee
- 586. Customer Placing the Largest Number of Orders
- 595. Big Countries
- 596. Classes More Than 5 Students
- 1729. Find Followers Count
- 1757. Recyclable and Low Fat Products
- 1890. The Latest Login in 2020
- 627. Swap Salary
- 607. Sales Person
- 1050. Actors and Directors Who Cooperated At Least Three Times
Medium
- 176. Second Highest Salary
- 177. Nth Highest Salary
- 178. Rank Scores
- 180. Consecutive Numbers
- 184. Department Highest Salary
- 608. Tree Node
- 626. Exchange Seats
- 1158. Market Analysis I
- 1393. Capital Gain/Loss
Hard
This list of SQL problems will help you improve your database skills, covering a variety of topics and difficulty levels.