What is RDBMS?

• Write-intensive operations: The RDBMS is frequently written to and is often used in transaction-oriented applications.
• Data in flux or historical data: The RDBMS is designed to handle frequently changing data. Alternatively, RDBMS can also store vast amounts of historical data, which can later be analyzed or "mined".
• Application-specific schema: The RDBMS is configured on a per-application basis and a unique schema exists to support each application.
• Complex data models. The relational nature of the RDBMS makes it suitable for handling sophisticated, complex data models that require many tables, foreign key values, complex join operations, and so on.
• Data integrity: The RDBMS features many components designed to ensure data integrity. This includes rollback operations, referential integrity, and transaction-oriented operations.

Another Answer

RDBMS stands for Relational Database Management System. RDBMS store the data into the collection of tables, which is related by common fields between the columns of the table. It also provides relational operators to manipulate the data stored into the tables.

Example: SQL Server.