Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
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PySpark SQL Functions: Boost Big Data Processing with SQL
Leverage PySpark SQL Functions to efficiently process large datasets and accelerate your data analysis with scalable, SQL-powered solutions.
Nathan Rosidi - October 3, 2024
Semi-Supervised Learning: Techniques & Examples
Semi-supervised learning uses both labeled and unlabeled data to improve models through techniques like self-training, co-training, and graph-based methods.
Nathan Rosidi - October 1, 2024
Basic Data Structure Types You Must Know
Master essential data structures like linked lists, stacks, and queues to efficiently manage dynamic data and boosting your overall programming efficiency.
Nathan Rosidi - September 26, 2024
Using Visualizations for Your Exploratory Data Analysis
No data science project should skip the exploratory data analysis stage. Enhance it with the five data visualization types we’ll show you in the article.
Nathan Rosidi - September 24, 2024Career
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Data Science Degrees vs. Certification Courses: Which is Right for You?
People typically learn data science by getting a university degree or taking a certification course. But which one is right for you? The article answers this question.Nathan Rosidi - August 28, 2024
What are the Fundamentals of Data Engineering?
Knowing the fundamentals of data engineering is essential for all newcomers to the field. This article is your springboard for further learning about data engineering.Nathan Rosidi - August 27, 2024Must-Have Tools for Every Stage of Data Analysis
Nathan Rosidi - August 12, 2024Tips for Crafting an Impressive Data Analyst Portfolio
Nathan Rosidi - July 24, 2024Tools for the Full-Stack Data Scientist
Nathan Rosidi - July 17, 2024Interviews
All Interviews articlesPySpark SQL Functions: Boost Big Data Processing with SQL
Leverage PySpark SQL Functions to efficiently process large datasets and accelerate your data analysis with scalable, SQL-powered solutions.Nathan Rosidi - October 3, 2024
Counting Distinct Values in SQL: Tips and Examples
Using SQL COUNT(DISTINCT) is an easy way to count distinct values in SQL. However, it has its own quirks, which we’ll explain (with examples) in this article.Nathan Rosidi - September 23, 2024Commonly Asked Data Structure Interview Questions
Nathan Rosidi - September 16, 2024The Fundamentals of Structuring Data
Nathan Rosidi - August 22, 2024How Do You Perform SQL LIKE Queries for Pattern Matching?
Nathan Rosidi - August 19, 2024Guides
All Guides articlesPySpark SQL Functions: Boost Big Data Processing with SQL
Leverage PySpark SQL Functions to efficiently process large datasets and accelerate your data analysis with scalable, SQL-powered solutions.Nathan Rosidi - October 3, 2024Semi-Supervised Learning: Techniques & Examples
Semi-supervised learning uses both labeled and unlabeled data to improve models through techniques like self-training, co-training, and graph-based methods.Nathan Rosidi - October 1, 2024Basic Data Structure Types You Must Know
Nathan Rosidi - September 26, 2024Using Visualizations for Your Exploratory Data Analysis
Nathan Rosidi - September 24, 2024Counting Distinct Values in SQL: Tips and Examples
Nathan Rosidi - September 23, 2024Companies
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What Does It Take to Be a Data Engineer at Google
Journeying through Skills, Perks, and Application Insights for Aspiring Google Data EngineersNathan Rosidi - May 23, 2024
Microsoft SQL Interview Questions
We'll discuss one of the interesting Microsoft SQL interview questions to help prepare you for applying for a role as a Microsoft data scientist.Nathan Rosidi - October 30, 2023LinkedIn Data Scientist Interview Questions
Nathan Rosidi - October 30, 202340+ Data Science Interview Questions From Top Companies
Nathan Rosidi - October 30, 2023Amazon Data Scientist Salary
Nathan Rosidi - October 26, 2023