Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
SQL Articles, Tutorials & Interview Questions
Learn to Use a Recursive CTE in SQL Query
Master recursive CTEs in SQL through eight real-world use cases with ready-to-use datasets, common mistakes, performance tips, and interview questions.
Tihomir Babic -
Business Analyst Interview Questions
The ultimate guide for all the business analysts trying to choose the questions they should prepare for a job interview.
Nathan Rosidi -
Amazon Data Science Interview Questions
In this article, we’ll solve one of the Amazon data science interview questions to show how to approach these questions the right way.
Irakli Tchigladze -
Basic SQL Interview Questions
In this article, we will go over some basic SQL interview questions asked during the interviews and how to approach solving them easily.Nathan Rosidi -
Ranking in Python and SQL
In this article, we will explore the ranking parameters that can help you handle the ranking tasks in a more efficient and accurate manner.Nathan Rosidi -
Facebook (Meta) SQL Interview Questions
Do you want to work at Meta? With the Meta interview questions and patterns we cover in this guide, your chances of landing that job look increasingly good.Tihomir Babic -
Amazon Data Analyst Interview Questions
One of the interesting but difficult interview questions that Amazon recently asked for the data analyst position.Nathan Rosidi -
Advanced Data Analytics Interview Questions
In this article, we’ll answer several SQL, Python, and statistics advanced data analytics interview questions, so you get through the interview easier.Irakli Tchigladze -
Practicing String Manipulation in SQL
A detailed walkthrough of the solution for a Google interview question to practice SQL String Manipulation.Nathan Rosidi -
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 -