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

The Essential Role of a BI Analyst in Today's Business World
BI analysts are essential in data-driven decision-making. Learn what BI is and how you can, too, become that missing piece in your new employer’s data team.
Nathan Rosidi -

What is MLOps? - Machine Learning Operations Explained
MLOps stands as a bridge between machine learning models and real-world applications for seamless AI integration and innovation.
Nathan Rosidi -

A Detailed Comparison Between Inner Join vs. Outer Joins
In this article, we compare inner join vs. outer join. We will talk about their similarities and differences and show you how to use them in practice.
Nathan Rosidi -

Top 15 SQL Server DBA Interview Questions
SQL Server DBA interviews: writing window functions, retention queries, explaining indexing internals and isolation levels.
Sara Nobrega -

Top 10 Machine Learning Algorithms for Beginner Data Scientists
Let’s explore the machine learning algorithms perfect for beginners in data science. We'll explain each one and show you how to use them effectively.
Nathan Rosidi -

NumPy Array Slicing in Python
NumPy Array Slicing in Python: exploring its syntax, versatility, and the profound impact it can have on data manipulation and analysis.
Nathan Rosidi -

The Industry Today: Different Data Science Specializations
Today’s data science job market asks for specialization. Here are five that will give you the upper hand when trying to land a job.
Nathan Rosidi -

A Beginner's Guide to Entry-Level Python Jobs
A career in data usually starts with entry-level Python jobs. Here’s a guide about these jobs, discussing everything you need to land such a job.
Nathan Rosidi -

Essential Python Libraries for Full-Stack Data Scientists
What Python libraries do you need to know as a beginner full-stack data scientist? Here’s the list you can use to impress your new employer from day one.
Nathan Rosidi -

Commonly Used Statistical Tests in Data Science
A Comprehensive Guide to Essential Statistical Tests and Their Applications.
Nathan Rosidi -

SQL ROW_NUMBER() Function: Syntax and Applications
How to add SQL ROW_NUMBER() to your data handling and analysis tools? We’ll help you by explaining its workings, its syntax, and how to use it in examples.
Nathan Rosidi -

Understanding the Pandas diff() Function: A Guide for Data Analysts
This guide explores the Pandas diff() function, detailing its utility in data trend analysis and predictive modeling with practical examples.
Nathan Rosidi -