Interview Questions - DBMS Basics

25.
What is Relationship set?
The collection (or set) of similar relationships.

26.
What is Relationship type?
Relationship type defines a set of associations or a relationship set among a given set of entity types.

27.
What is degree of Relationship type?
It is the number of entity type participating.

28.
What is DDL (Data Definition Language)?
A data base schema is specifies by a set of definitions expressed by a special language called DDL.