Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
Interviews
Illustrated Guide About Self Join in SQL
Mastering SQL Self Joins: how they work, why they multiply rows, and when to use them for comparisons, retention, and deduplication.
Nathan Rosidi -
Solving LeetCode Single Number Problem for Data Science Interviews
How does a data scientist solve the LeetCode Single Number problem in Python to prepare for their data science interviews?Nathan Rosidi -
What Is SQL GROUP BY and How to Use It?
The article discusses the seven most typical uses of SQL GROUP BY. We’ll go through its syntax and coding examples to give a taste of real-life SQL coding.Nathan Rosidi -
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 -
14 Different Data Science Job Titles
A guide to all the data science job titles you can consider if you have a data science background.Nathan Rosidi -
Binomial Distribution in Python for Coin Flip Prediction
Exploring the binomial distribution in Python: understanding probability calculations for coin flips with different methods.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 -
Facebook Interview Process (With Latest Coding Questions)
To excel at the Facebook interview process, you first need to know what it is. Let’s talk about it and solve several Facebook interview questions along the way.Nathan Rosidi -