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Streamline your DSA prep with structured sheets and company-wise problems.

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  1. Companies
  3. Amazon
  5. Database

Database

Overall Progress0/54(0%)
Easy
0/26
Medium
0/21
Hard
0/7
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Second Highest Salary
Medium
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Employees Earning More Than Their Managers
Easy
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Find Customer Referee
Easy
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Consecutive Numbers
Medium
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Rank Scores
Medium
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Department Top Three Salaries
Hard
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Department Highest Salary
Medium
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Swap Salary
Easy
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Delete Duplicate Emails
Easy
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Exchange Seats
Medium
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Average Selling Price
Easy
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Managers with at Least 5 Direct Reports
Medium
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Product Sales Analysis I
Easy
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Customer Placing the Largest Number of Orders
Easy
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Product Price at a Given Date
Medium
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Rearrange Products Table
Easy
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Restaurant Growth
Medium
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Customers Who Bought All Products
Medium
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Reformat Department Table
Easy
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Sales Analysis III
Easy
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Find Total Time Spent by Each Employee
Easy
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Friend Requests II: Who Has the Most Friends
Medium
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Human Traffic of Stadium
Hard
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Actors and Directors Who Cooperated At Least Three Times
Easy
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Consecutive Available Seats
Easy
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Find the Start and End Number of Continuous Ranges
Medium
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Product Sales Analysis III
Medium
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All People Report to the Given Manager
Medium
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List the Products Ordered in a Period
Easy
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Active Users
Medium
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Find the Team Size
Easy
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Report Contiguous Dates
Hard
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Customer Order Frequency
Easy
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Customers Who Bought Products A and B but Not C
Medium
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Number of Calls Between Two Persons
Medium
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Sales Analysis II
Easy
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The Most Frequently Ordered Products for Each Customer
Medium
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Find Cumulative Salary of an Employee
Hard
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Average Salary: Departments VS Company
Hard
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Grand Slam Titles
Medium
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Find the Missing IDs
Medium
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Find Interview Candidates
Medium
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Sales Analysis I
Easy
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Students Report By Geography
Hard
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Students With Invalid Departments
Easy
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Warehouse Manager
Easy
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New Users Daily Count
Medium
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Sales by Day of the Week
Hard
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Product's Price for Each Store
Easy
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Ad-Free Sessions
Easy
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Friendly Movies Streamed Last Month
Easy
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Product Sales Analysis II
Easy
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All Valid Triplets That Can Represent a Country
Easy
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NPV Queries
Easy
Visitors6
Compiler Status