Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
Python Cheat Sheet – Technical Concepts for the Job Interview
A quick reference Python cheat sheet for learning the common tasks. Data structures, functions, data wrangling – the basics any data scientist should know.
Vivek Sankaran -
Data Engineer SQL Interview Questions From Top Employers
In this article, we will list important SQL concepts and walk you through 10 data engineer SQL interview questions asked by employers like Google and Amazon.
Irakli Tchigladze -
A Comprehensive Guide to CASE WHEN statements in SQL
Let’s explore the basic and advanced syntax of CASE WHEN statements in SQL and show how to use CASE statements to answer difficult interview questions in SQL.Irakli Tchigladze -
Machine Learning Algorithms Explained: Support Vector Machine
Brace yourself for a detailed explanation of the Support Vector Machine. You’ll learn everything you wanted and what you didn’t but really should know.
Nathan Rosidi -
Types of Pandas Joins and How to use them in Python
Here are different types of pandas joins and how to use them in Python. Inner, Outer, Right, and Left joins are explained with examples from Amazon and Meta.Nathan Rosidi -
Postgres Aggregate Functions You Must Know
In this article, we’ll explain the most popular Postgres aggregate functions, discuss their use cases, and answer five interview questions by top employers.Irakli Tchigladze -
30 Product Analyst Interview Questions
Lacking confidence for the product analyst interviews? 30 questions, 7 topic categories, numerous interview tips, and practice opportunities will fix that.
Tihomir Babic -
The Essential 3 Data Science Projects to Land Your Dream Job
Here are 3 projects that will help land a data science job. These projects improve all five fundamental skills you’ll have to showcase in an interview.Nathan Rosidi -
Amazon SQL Interview Questions
Amazon SQL Interview Questions: The Real Patterns, Traps, and Query Skills Amazon Actually Tests.
Sara Nobrega -
Digging Deeper Into SQL Temp Tables
This article helps you unlock the power of SQL temporary or temp tables. Improve your query efficiency, data analysis, and data transformation with them.Nathan Rosidi -
Mastering the SQL Subqueries With Multiple Tables
Mastering the tools to use subqueries involving multiple tablesNathan Rosidi -
MySQL Interview Questions
Interview questions to learn MySQL from the basics and get ready for your next Data Science Interview involving the most popular open-source SQL database in the world.Vivek Sankaran -