What a Database Is and Why It Matters

This lesson explains what a database is, what problems it solves, and why businesses and applications rely on databases instead of spreadsheets or loose files.

You will learn the core idea of structured data storage, the difference between data and database management, and the kinds of situations where a database is the right tool. By the end, you should be able to describe a database in practical terms and recognize its value before moving on to database design and SQL.