Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
SQL
Amazon SQL Interview Question Walkthrough: Caller History
A detailed introduction to using FIRST_VALUE(), explained in a step-by-step solution to Amazon’s medium-level SQL interview question.
Nathan Rosidi -
Wine Magazine SQL Interview Question on RANK function
An exhaustive walkthrough to a hard-level SQL question involving windows functions, PARTITION BY clauses, CASE statements, and Common Table Expressions.Nathan Rosidi -
Spotify Advanced SQL Interview Question on PARTITION BY Clause
A detailed solution walkthrough to a hard Spotify SQL interview question involving Joins, Aggregations, Case Statements, and Partition By Clause.Nathan Rosidi -
PayPal Data Scientist Interview Questions
In this post we'll take a close look at one of the PayPal data scientist interview questions and discuss two different ways of solving this question using SQL.Nathan Rosidi -
Facebook Interview Question Walkthrough - Popular Posts
Our series of interview question walk-throughs marches on! Today we’ll be dealing with the advanced Meta/Facebook SQL question.Nathan Rosidi -
SQL JOIN Interview Questions
This article covers the most common SQL JOIN interview questions, how to answer them, and what you need to know about JOINs to join the desired company.Nathan Rosidi -
Noom Data Analyst Interview Question
Noom helps you lose weight. We help you get a job at Noom. In today’s article, we’ll show you one of Noom’s hard SQL interview questions.Nathan Rosidi -
Questions To Help You Practice For Your Data Science Interview
An overview of the types of questions in a Data Science interview along with the hands on practice using our platform.Nathan Rosidi -
DoorDash SQL Interview Questions
A detailed walkthrough of one of the interesting DoorDash SQL interview questions and solution.Nathan Rosidi -
Amazon Business Analyst Interview Questions
Sharpen your skills of writing SQL queries to maximize your chances of getting a Business Analyst job at Amazon
Irakli Tchigladze -
SQL Aggregate Functions Interview Questions
Let's take a deeper dive into the must-know SQL aggregate concepts for your next Data Science Interview.
Vivek Sankaran -
Amazon Data Engineer Interview Questions
Amazon Data Engineer interview questions that will specifically focus on the SQL coding skills relevant from a data engineering point of view.Vivek Sankaran -