Relational databases are a type of database that organizes data into structured tables consisting of rows and columns. Each table represents a specific entity, and the relationships between these tables are defined through key columns. This structure allows for efficient data access and manipulation, typically using Structured Query Language (SQL) for querying and managing the data ¹³.

One of the key features of relational databases is their schema, which defines the structure of the data, including the types of data that can be stored in each column. This schema must be established before data can be entered, making it somewhat rigid but effective for uniform and structured data ³.

Relational databases are widely used in various applications, including web development and enterprise systems, due to their ability to maintain data integrity and support complex queries. They are essential for applications that require consistent and reliable data management ²⁴.

If you have more specific questions about relational databases, feel free to ask!