Answer: A self-describing collection of related tables
Explanation:
A relational database is the self describing collection of the related records and the tables.Tables within the relational database are basically related to each other. A relational database is the set that formally describe the table in which the data can be access in many different ways.
Several relational database system use the structured query language for maintaining and querying the database.
In the relational database management system, the software system is basically used to maintain the relational database.
