FAANG Interview Can You Solve This SQL Interview Question? Conversion|LeetCode 3497 скачать в хорошем качестве

FAANG Interview Can You Solve This SQL Interview Question? Conversion|LeetCode 3497

In this video, we tackle LeetCode 3497: Analyze Subscription Conversion, a fantastic SQL Medium problem that frequently appears in Data Science and Backend Engineering interviews. We need to analyze user behavior by identifying customers who have converted from a Free Trial to a Paid Subscription and calculating the average duration of their activity in each phase. 🚀 What you will learn in this tutorial: ✅ Conditional Aggregation: How to use CASE WHEN inside AVG() to calculate separate metrics for different activity types. ✅ Filtering Groups: Mastering the HAVING clause to filter for users who meet multiple criteria (both free and paid history). ✅ Data Formatting: Using ROUND() for clean, professional output. ✅ Step-by-Step Logic: From understanding the raw data to writing the final optimized query. 📝 The SQL Concepts used: GROUP BY & HAVING AVG() with CASE statements ROUND() #sqlinterview #leetcode #dataanalysis #sqlinterview #datasciencetutorial #codinginterview #LeetCode3497 #databasequeries #coding #programming #technicalinterview #galgotiasuniversitynoida #noidainternationaluniversity #glauniversity #engineering #engineeringstudent