Database Fundamentals: Architecture, Design, and Modern SQL

Reliable data storage and efficient retrieval form the backbone of modern software engineering and business systems. This text-based course guides you through core database principles, from foundational architecture to structured query techniques and modern data management practices. You will begin with essential terminology and principles, progress through relational database normalization and schema design, and learn how to construct performant SQL queries. You will also explore when to choose relational systems versus NoSQL or vector stores in contemporary application development. What you'll learn: - Understand core database terminology, relational models, and data integrity constraints - Design structured database schemas using entity-relationship modeling and normalization techniques - Write precise SQL queries using filtering, aggregation, joins, and indexing strategies - Apply transaction control principles (ACID) to ensure consistent data states - Compare relational databases with modern NoSQL key-value, document, and vector database systems - Implement database security fundamentals, access controls, and backup best practices The course begins with foundational concepts and definitions before advancing to real-world schema design challenges and written querying exercises. This course is designed for beginners, aspiring software developers, and data enthusiasts with no prior database experience required. Start reading today to build a strong foundation in database architecture and data management.