What is relational databases?

Relational databases are a type of database that stores and provides access to data points that are related to one another. Relational databases are based on the relational model, an intuitive, straightforward way of representing data in tables. In a relational database, each row in the table is a record with a unique ID called the key. The columns of the table hold attributes of the data, and each record usually has a value for each attribute, making it easy to establish the relationships among data points. Relational databases use SQL (Structured Query Language) to manage and query data. They are commonly used for applications requiring data integrity, scalability, and efficient data retrieval, such as transaction processing, financial systems, and customer relationship management.