Overview of Databases
Learn about databases and their types.
Imagine our online store is doing well and we're receiving many orders from our customers. To manage all these orders efficiently, we need to keep track of product availability, customer details, suppliers, and sales records. Handling all this information manually would be chaotic. This is where databases come in—they allow us to store, organize, and retrieve data efficiently.
Let's explore databases, their types, and how relational databases differ from non-relational databases. Understanding these concepts will provide a solid foundation for using SQL to manage and retrieve data effectively. We'll aim to:
Understand what a database is and why it is essential.
Identify different types of databases.
Differentiate between relational and non-relational databases.
What is a database?
A database is an organized collection of data that allows users to store, retrieve, and manage information efficiently. It acts as a structured storage system where data is categorized and indexed for easy access.