A relational database management system (RDBMS) is a software system that manages relational databases. In a relational database, data is stored in tables, where each table consists of rows and columns. A row represents a collection of related data, and a column represents a specific attribute or field of the data.
The RDBMS enables users to interact with the database by supporting various operations such as insertion, deletion, and modification of data, as well as running queries that retrieve data from the database. The RDBMS also enforces data integrity and consistency by enforcing constraints and relationships between tables.
Some popular examples of RDBMS include MySQL, Oracle, Microsoft SQL Server, and PostgreSQL. These systems use a common language called Structured Query Language (SQL) to manipulate data in the database.
In summary, an RDBMS is a software system that manages relational databases by supporting various data operations and enforcing data integrity and consistency.