A relational database management system (RDBMS) is a software application that enables the storage, management, and retrieval of data from a relational database. It provides a structured and organized approach to store and manage data in the form of tables.
In a relational database, data is stored in the form of tables or relations, which consist of rows and columns. Each table represents a specific entity or concept, and each row in the table represents a unique instance or record related to that entity. The columns in the table define the attributes or characteristics of the entity.
The RDBMS facilitates the creation, modification, and deletion of tables, as well as the insertion, updating, and deletion of data within those tables. It also offers a set of powerful tools and functionalities for querying and manipulating the data stored in the tables.
One of the key advantages of an RDBMS is the ability to establish relationships between different tables using keys. These relationships enable the RDBMS to efficiently retrieve and combine related data from multiple tables, providing a structured and organized system for data management.
Examples of popular RDBMSs include Oracle, MySQL, Microsoft SQL Server, and PostgreSQL. They are widely used in various industries and applications, ranging from business operations and finance to e-commerce and data analytics, due to their reliability, scalability, and ability to handle complex data structures.
