595. Big Countries
596. Recyclable and Low Fat Products
597. Find Customer Referee
598. Customers Who Never Order
1873. Calculate Special Bonus
1874. Swap Salary
1875. Delete Duplicate Emails
1667. Fix Names in a Table
1668. Group Sold Products By The Date
1669. Patients With a Condition
1965. Employees With Missing Information
1966. Rearrange Products Table
1967. Tree Node
1968. Second Highest Salary
175. Combine Two Tables
176. Customer Who Visited but Did Not Make Any Transactions
177. Article Views I
197. Rising Temperature
198. Sales Person
1141. User Activity for the Past 30 Days I
1142. Daily Leads and Partners
1143. Find Followers Count
586. Customer Placing the Largest Number of Orders
587. Game Play Analysis I
588. The Latest Login in 2020
589. Find Total Time Spent by Each Employee
1393. Capital Gain/Loss
1394. Top Travellers
1395. Market Analysis I
182. Duplicate Emails
183. Actors and Directors Who Cooperated At Least Three Times
184. Bank Account Summary II
185. Sales Analysis III