Database Management System20805 marksEntity Types, Entity Sets, Attributes, and Keys
What is conceptual data model? Explain different types of attributes used in ER diagram.
What is conceptual data model? Explain different types of attributes used in ER diagram. [5]
--- A conceptual data model is a collection of concepts used to describe the structure of a database at a high level of abstraction, independent of any physical implementation. It provides the necessary means to achieve abstraction and acts as a conceptual tool for describing data and the relatio...