Database Management System207910 marksER diagram purpose and symbols
Explain the various Symbols used in E-R Model?
Explain the various Symbols used in E-R Model?[10]
The Entity-Relationship (E-R) Model is a high-level conceptual data model used to describe the structure of a database. It was proposed by Peter Chen in 1976. The E-R model uses a set of standard graphical symbols to represent data and the relationships among data. An E-R diagram (ERD) is a diagr...