Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.

Clustered vs. Non-Clustered Indexes in SQL
Today’s showdown is clustered vs. non-clustered indexes. Learn more about their features, strengths, and weaknesses, and join us to see who wins this fight.
Nathan Rosidi -

MS SQL Interview Questions That Will Challenge Your Skills
Solving actual MS SQL interview questions is the best way of preparing for a technical interview. Here’s a detailed guide on how to challenge your skills.
Nathan Rosidi -

PySpark Interview Questions for Data Science Excellence
Navigating Through Essential PySpark Interview Questions from Basics to Advanced for Aspiring Data Scientists.
Nathan Rosidi -

What Are the Most Common Python Basic Interview Questions?
This article covers key Python interview questions for beginners, focusing on basics and data handling in Python. Let's dive in!
Nathan Rosidi -

A Day in the Life of a Senior Data Scientist
Everything you never wanted to know about a day in the life of a senior data scientist. We take a voyeuristic look into the life of some guy called Nate.
Nathan Rosidi -

Python Collections: Essentials to Advanced
Mastering Python Collections: In-depth exploration of Lists, Dictionaries, Tuples, and advanced data structures for optimal coding efficiency.
Nathan Rosidi -

How to Use Python Lambda Functions
A comprehensive exploration of Python lambda functions: advanced techniques for efficient data analysis in socio-economic and demographic studies.
Nathan Rosidi -

Tree-Based Models in Machine Learning
Mastering Tree-Based Models in Machine Learning: A Practical Guide to Decision Trees, Random Forests, and GBMs.
Nathan Rosidi -

Top Data Warehouse Interview Questions with Answers
Your ultimate guide to acing data warehouse interviews with in-depth answers to the interview questions and insider tips for every level.
Nathan Rosidi -

Data Cleaning 101: Avoid These 5 Traps in Your Data
Data cleaning is a foundational skill in data science. Learn the five most common traps your data hides and how to recognize and handle them like a pro.
Nathan Rosidi -

How to Use Python Property Decorator (With Examples)
Master Python Property Decorators: From Basic Syntax to Advanced Techniques and Best Practices.
Nathan Rosidi -

Exploring the Role: What Does a Business Analyst Do and How?
What does a business analyst do? Here’s a one-stop shop for information about the business analyst job, skills, tools used, and career prospects.
Nathan Rosidi -