LinkedIn Skill Endorsements User Engagement

Company:LinkedIn
Dawn AI

Welcome to Interview Master! 👋

I'm here to help you practice LinkedIn Skill Endorsements User Engagement - a real SQL interview question from LinkedIn.

Problem Overview

As a Product Analyst on the LinkedIn Recommendations team, you are exploring how skill endorsements contribute to professional profiles. Your team is focused on understanding the patterns and factors that drive meaningful skill recognition among users. The goal is to identify key metrics that reflect how endorsements validate skills in different categories, such as 'TECHNICAL' and 'MANAGEMENT'.

This problem will test your SQL skills in:

  • Complex query writing and optimization
  • Data analysis and manipulation
  • Real-world database scenarios used in LinkedIn interviews
  • Advanced SQL concepts and best practices

What You'll Learn

By solving this LinkedIn SQL interview question, you'll gain experience with:

  • Writing efficient SQL queries for production databases
  • Understanding complex data relationships and schema design
  • Applying SQL skills in a LinkedIn-style technical interview setting
  • Problem-solving techniques used by data scientists and analysts at top tech companies

Getting Started

Use the SQL editor on the right to:

  1. Explore the database schema and table structures
  2. Write and test your SQL queries in a real SQLite environment
  3. Get instant feedback on your query results
  4. Learn from hints and detailed explanations

Ready to practice this LinkedIn SQL challenge? Let's dive in! 🚀

I'm ready to work on this LinkedIn SQL problem. Can you break down the requirements for me?

Dawn AI

Excellent! Let's break down "LinkedIn Skill Endorsements User Engagement" step by step.

Problem Analysis

Company: LinkedIn
Problem Type: SQL Interview Question
Skill Level: Professional interview preparation

Key Requirements

As a Product Analyst on the LinkedIn Recommendations team, you are exploring how skill endorsements contribute to professional profiles. Your team is focused on understanding the patterns and factors that drive meaningful skill recognition among users. The goal is to identify key metrics that reflect how endorsements validate skills in different categories, such as 'TECHNICAL' and 'MANAGEMENT'.

Approach Strategy

For this LinkedIn SQL interview question, consider:

  1. Data Exploration: Start by examining the table schemas to understand the data relationships
  2. Query Planning: Think about which tables you'll need to JOIN and what conditions to apply
  3. SQL Optimization: Consider performance implications for large datasets (important for LinkedIn scale)
  4. Edge Cases: Think about NULL values, duplicate data, and boundary conditions

Next Steps

  1. Click on the "Schema" tab in the SQL editor to examine the table structures
  2. Review the sample data to understand the data patterns
  3. Start with a basic SELECT statement and build complexity gradually
  4. Test your query and iterate based on the results

This type of SQL problem is commonly asked in LinkedIn technical interviews for data analyst, data scientist, and software engineer positions. Take your time to understand the problem thoroughly before writing your solution.

Ready to start coding? 💻

Interview Master can make mistakes. If you encounter a mistake

Current Question

1
2
3
As a Product Analyst on the LinkedIn Recommendations team, you are exploring how skill endorsements contribute to professional profiles. Your team is focused on understanding the patterns and factors that drive meaningful skill recognition among users. The goal is to identify key metrics that reflect how endorsements validate skills in different categories, such as 'TECHNICAL' and 'MANAGEMENT'.
Company: LinkedIn
Difficulty: Medium

Tables

?
fct_chat_interactions(user_id, message_id, feature_used, interaction_date)
users(id, name, department, created_at)
1
2
3
4
5
6
7
8
9
10

Run a query to see results

Ready to start practicing?