One Touch Conversion Performance for Mobile Shoppers

Company:PayPal
Dawn AI

Welcome to Interview Master! 👋

I'm here to help you practice One Touch Conversion Performance for Mobile Shoppers - a real SQL interview question from PayPal.

Problem Overview

As a Product Analyst on the PayPal One Touch team, you are investigating mobile checkout conversion rates for the One Touch login feature. Your team wants to understand how different login methods impact transaction completion across mobile platforms. You will use transaction data to evaluate login method performance and user engagement.

This problem will test your SQL skills in:

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

What You'll Learn

By solving this PayPal 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 PayPal-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 PayPal SQL challenge? Let's dive in! 🚀

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

Dawn AI

Excellent! Let's break down "One Touch Conversion Performance for Mobile Shoppers" step by step.

Problem Analysis

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

Key Requirements

As a Product Analyst on the PayPal One Touch team, you are investigating mobile checkout conversion rates for the One Touch login feature. Your team wants to understand how different login methods impact transaction completion across mobile platforms. You will use transaction data to evaluate login method performance and user engagement.

Approach Strategy

For this PayPal 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 PayPal 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 PayPal 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? 💻

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Current Question

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As a Product Analyst on the PayPal One Touch team, you are investigating mobile checkout conversion rates for the One Touch login feature. Your team wants to understand how different login methods impact transaction completion across mobile platforms. You will use transaction data to evaluate login method performance and user engagement.
Company: PayPal
Difficulty: Medium

Tables

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fct_chat_interactions(user_id, message_id, feature_used, interaction_date)
users(id, name, department, created_at)
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Run a query to see results

Ready to start practicing?