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#Database

Interview experiences & questions tagged Database

Experiences Questions

Azure Cosmos DB Usage and Partitioning

Medium

Why did you use Azure Cosmos DB in your project? Which partition key was selected and why? What are the disadvantages of Cosmos DB?

PWCsystem_design

Preventing Double Booking and Managing Seat Inventory

Hard

How do you maintain database consistency, prevent double booking of seats, and manage seat inventory during high-concurrency booking scenarios?

JPMorganChasesystem_design

Connection Pooling vs Virtual Threads

Hard

How does the introduction of Virtual Threads impact connection pooling and resource management strategies in Java backend services?

JPMorganChasegeneral_knowledge

Find Employees Earning More Than Their Manager

Easy

Given an `Employee` table with schema `(emp_id, emp_name, salary, manager_id)`, write an SQL query to find employees whose salary is greater than their manager's salary.

Fincartcoding

Handling NULL values and conditional logic