SQL & Data Interview Questions

Practice the most common SQL, Statistics, ML, and Python questions asked in FAANG Data Science & Data Analyst interviews!

Company	Title	Category	Difficulty
Twitter	Histogram of Tweets	SQL	Easy
LinkedIn	Data Science Skills	SQL	Easy
Facebook	Page With No Likes	SQL	Easy
Tesla	Unfinished Parts	SQL	Easy
New York Times	Laptop vs. Mobile Viewership	SQL	Easy
Facebook	Average Post Hiatus (Part 1)	SQL	Easy
Microsoft	Teams Power Users	SQL	Easy
Linkedin	Duplicate Job Listings	SQL	Easy
Robinhood	Cities With Completed Trades	SQL	Easy
Amazon	Average Review Ratings	SQL	Easy
Facebook	App Click-through Rate (CTR)	SQL	Easy
TikTok	Second Day Confirmation	SQL	Easy
JPMorgan Chase	Cards Issued Difference	SQL	Easy
Alibaba	Compressed Mean	SQL	Easy
CVS Health	Pharmacy Analytics (Part 1)	SQL	Easy
CVS Health	Pharmacy Analytics (Part 2)	SQL	Easy
CVS Health	Pharmacy Analytics (Part 3)	SQL	Easy
UnitedHealth	Patient Support Analysis (Part 1)	SQL	Easy
Uber	User's Third Transaction	SQL	Medium
Snapchat	Sending vs. Opening Snaps	SQL	Medium
Twitter	Tweets' Rolling Averages	SQL	Medium
Amazon	Highest-Grossing Items	SQL	Medium
Spotify	Top 5 Artists	SQL	Medium
TikTok	Signup Activation Rate	SQL	Medium
Microsoft	Supercloud Customer	SQL	Medium
Google	Odd and Even Measurements	SQL	Medium
Walmart	Histogram of Users and Purchases	SQL	Medium
Alibaba	Compressed Mode	SQL	Medium
JPMorgan Chase	Card Launch Success	SQL	Medium
Verizon	International Call Percentage	SQL	Medium
UnitedHealth	Patient Support Analysis (Part 2)	SQL	Medium
Facebook	Active User Retention	SQL	Hard
Wayfair	Y-on-Y Growth Rate	SQL	Hard
Amazon	Maximize Prime Item Inventory	SQL	Hard
Google	Median Google Search Frequency	SQL	Hard
Facebook	Advertiser Status	SQL	Hard
McKinsey	3-Topping Pizzas	SQL	Hard
Stripe	Repeated Payments	SQL	Hard
Oracle	Who Made Quota?	SQL	Easy
Amazon	Server Utilization Time	SQL	Hard
Bloomberg	FAANG Stock Inter-Month Change (Part 2)	SQL	Medium
Bloomberg	FAANG Stock Min-Max (Part 1)	SQL	Medium
	Second Highest Salary	SQL	Medium
	Top Three Salaries	SQL	Medium

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