Question

definitions of database and RDBMS database​

Answer 1

Answer:

A database management system (DBMS) that incorporates the relational-data model, normally including a Structured Query Language (SQL) application programming interface. In a relational database, relationships between data items are expressed by means of tables

Explanation:

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Answer 2

Answer:

The software used to store, manage, query, and retrieve data stored in a relational database is called a relational database management system (RDBMS). The RDBMS provides an interface between users and applications and the database, as well as administrative functions for managing data storage, access, and performance