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ACE THE SQL & DATA SCIENCE INTERVIEW

Practice SQL Interview and Data Science Interview questions on DataLemur. Made
by Nick Singh, Best-Selling Author of Ace the Data Science Interview

CompanyTitleDifficulty

LinkedIn

Data Science Skills

Easy

Facebook

Page With No Likes

Easy

Tesla

Unfinished Parts

Easy

New York Times

Laptop vs Mobile Viewership

Easy

Robinhood

Cities With Completed Trades

Easy

Snapchat

Sending vs. Opening Snaps

Medium

Twitter

Tweets' Rolling Averages

Medium

Google

Odd and Even Measurements

Medium

Walmart

Frequently Purchased Pairs

Medium

Amazon

Average Review Ratings

Medium

Facebook

Active User Retention

Hard

Wayfair

Y-on-Y Growth Rate

Hard

Google

Median Google Search Frequency

Hard

Stripe

Rolling 3-Days Earnings

Hard

View All Questions


TESTIMONIALS

 * > "I signed up for the DataLemur Beta in July when a post about it randomly
   > came up on my LinkedIn feed. I’m so glad I came to know about DataLemur
   > because a few months later when I interviewed at Amazon, not one but TWO of
   > the SQL problems from DataLemur showed up during my onsite interview which
   > I was easily able to ace!"
   
   — Jia Z.
   Senior Data Analyst at Amazon

 * > "In Fall 2021 I used the book Ace the Data Science Interview to land a
   > Product Data Science job at Meta. As I prep to switch jobs in early 2023,
   > DataLemur is proving itself very handy because it allows me to
   > interactively practice many of the SQL questions from the book, but also
   > has tons of new Stats & ML interview questions that aren’t in the book"
   
   — Rakesh
   Data Scientist at Meta

 * > "I did Udemy SQL courses but they didn’t have enough interview practice
   > which is why my NIT batchmate told me to try DataLemur. Using the detailed
   > hints and nice solutions on DataLemur I was able to crack interviews at
   > Infosys and Accenture and get ₹4 lakh salary increase"
   
   — Savita G.
   BI Engineer at Accenture


ABOUT DATALEMUR FOUNDER NICK SINGH

Hi, I’m Nick Singh! Before I made DataLemur, I used to write SQL queries and run
A/B tests all day at Facebook, and before that, wrote Python on Google Nest's
Data Infrastructure Team. I know first-hand how difficult Data Science, Data
Analyst, & Data Engineering interviews can be.

While my best-selling book, Ace the Data Science Interview, has successfully
helped 16,000+ readers prepare for the Statistics, ML, and Business-Sense
portions of data interviews, readers kept asking for a more interactive way to
practice the 201 questions from the book.

That's why I made DataLemur, an interactive SQL & Analytics interview platform
for the data community!

Start Practicing


INTERVIEW QUESTIONS

Data Science Interview QuestionsSQL Interview QuestionsPython Coding Interview
QuestionsStatistics Interview QuestionsMachine Learning Interview Questions


CAREER RESOURCES

Free 9-Day Data Interview Crash CourseFree SQL Tutorial for Data
AnalyticsUltimate SQL Interview GuideAce the Data Job Hunt Video CourseAce the
Data Science InterviewBest Books for Data Analysts


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