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Build job-ready MongoDB skills fast with a free online course—install, create collections, query, update, and aggregate data confidently for real projects.
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10 exercises
Build job-ready database skills with this free online course—learn DBMS fundamentals, ER modeling, relational concepts, and architecture with practice quizzes.
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27 exercises
Build job-ready SQL skills with a free MySQL course: query data fast, write safer updates, and master joins, DISTINCT, and keys to earn a certificate.
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10 exercises
Free CourseSQL Database Programming
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Free CourseComplete MongoDB Tutorial
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Free CourseMongoDB Tutorial For Beginners
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SQL vs NoSQL: Choosing the Right Database (and Learning Paths for MySQL, SQL Server, PostgreSQL, Oracle, and MongoDB)
Understand SQL vs NoSQL, compare databases, and learn how to choose the right solution for scalability, consistency, and performance.
Database Transactions Explained: ACID, Isolation Levels, and Concurrency Control Across SQL and NoSQL
Learn database transactions, ACID, isolation levels, locks, MVCC, and concurrency control across SQL and NoSQL systems.
Database Schema Design for Real Projects: From Requirements to Reliable Models
Practical guide to database schema design: requirements, keys, relationships, constraints, migrations, and reliable models for real projects.
Database Normalization, Denormalization, and When to Break the Rules
Learn database normalization and denormalization with practical rules for designing cleaner schemas, avoiding anomalies, and improving performance.
Database Indexing for Backend Developers: Make Queries Fast Without Guesswork
Learn practical database indexing for backend developers to speed up queries, improve joins, optimize pagination, and reduce API latency.
AI in the Real World: Building Reliable Systems from Data to Decisions
Learn how real-world AI systems go from data to decisions with reliable modeling, deployment, monitoring, and responsible AI practices.
An Introduction to PostgreSQL: Powerful Open Source Relational Database
Discover PostgreSQL, a powerful open-source relational database. Learn its features, benefits, and why it’s ideal for modern applications and scalable systems.
Exploring PostgreSQL Extensions: Unlocking Advanced Database Functionality
Unlock PostgreSQL’s full potential with extensions. Learn how to add features, improve performance, and customize your database for advanced use cases.
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Discover the essential knowledge and skills required for managing and optimizing database systems with our free online database courses. As fundamental components of any digital infrastructure, databases power popular applications and websites like Instagram and WhatsApp, necessitating skilled professionals in the field.
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What are people saying about free online courses of Databases
ALPHA MANS CONTEH
it nice and I enjoyed every part of the lectures
CourseDatabase Management Systems
Akash Palvalsa
Fast and Excellent course. Bucky was great in explaining every concept without creating any confusion . Overall it's a quick and easy course for everyone to learn SQL database.
CourseMySQL database
mebankmen khongmalai
it is a great help for me i learnt new things from this course
CourseMySQL database