Could you explain what is meant by relational databases and how they are organized?

Relational databases (RDBs) are database management systems where data is organized into tables (relations). Each table consists of rows (records) and columns (fields), where each row represents a distinct object or record, and each column is an attribute of that object.

Main characteristics of relational databases:

• Tabular structure: data is stored in tables with clearly defined data types.
• Relationships between tables: implemented through keys (primary and foreign), allowing data to be linked across different tables.
• SQL query language: used for creating, reading, updating, and deleting data.

Example: a "Users" table with fields ID, Name, Email, and an "Orders" table with fields ID, UserID, Date, where UserID is a foreign key linking an order to a specific user.

This approach ensures data integrity and ease of data processing.