Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
Guides
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 -
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 -
Why SQL is THE Language to Learn for Data Science
Outdated, non-cool, and basic – is that what you think of it? SQL is none of that! Here’s why you can’t avoid it in data science, and it’s here to stay.Nathan Rosidi -
Mastering SQL DENSE_RANK(): A Comprehensive Guide
How do you use SQL DENSE_RANK() to rank data in SQL? This guide will help you become a master in SQL ranking window functions.Nathan Rosidi -
Breakdown of the Data Analyst Salary and Job Market
Who are data analysts and how high is their salary? What skills do you need to become one? You'll find the answers to these questions in this article.Nathan Rosidi -
Python's Advanced Concepts: Copying, Regex, Decorators
Unlocking Python's Potential: Exploring Advanced Concepts - Shallow vs. Deep Copying, Regular Expressions, and DecoratorsNathan Rosidi -
Machine Learning Algorithms You Should Know for Data Science
These machine learning algorithms are the bread and butter for Data Scientists to solve problems and derive insights in a faster and more efficient way.Nathan Rosidi -
AI Chrome Extensions for Data Science: Streamlining Workflows
Here are eight AI Chrome extensions that data scientists will find helpful. Especially if they’re of the lazy sort that wants data science to work for them.Nathan Rosidi -