Free ebookDatabase Design Basics: From Requirements to a Clean Schema

Course Description

Database Design Basics: From Requirements to a Clean Schema is a practical ebook course for anyone in Information Technology who wants to build relational databases that stay clear, consistent, and easy to maintain. You will learn how to translate real business needs into a database design that supports reliable reporting, accurate transactions, and scalable application development.

Starting with requirements, you will practice turning vague requests into concrete data facts, then shaping those facts into a strong relational database model. Along the way, you will learn how to decide what should be a table versus an attribute, how to model relationships with correct cardinality, and how to create ER diagrams that remain readable through good notation, naming, and layout. This progressive approach helps you move from early drafts to a clean schema you can confidently implement.

You will also focus on the rules that make a database trustworthy in real-world systems. By understanding primary keys and stable identifiers, you can ensure uniqueness without fragile workarounds. By applying foreign keys and referential integrity, you can enforce relationships instead of relying on application code alone. You will learn how constraints and data quality rules capture business meaning directly in the schema, reducing errors and improving consistency across teams and tools.

To help you avoid costly redesigns, the course highlights common modeling mistakes and shows practical fixes that lead to cleaner schemas. You will validate design decisions with use cases so your database supports the queries and workflows people actually need. Whether you are preparing for a database role, improving an existing system, or designing a new relational database from scratch, this course gives you a clear path from requirements to a maintainable schema.

Start the course today and build database design skills you can use immediately in projects, interviews, and everyday development.