Conversion of E-R Diagram into Relational Model
Conversion of an E-R diagram into a relational model is required because E-R diagrams represent the conceptual level of the database design while the relational model represents the logical level.
Relationships in the E-R Diagram
Relationships in the E-R diagram play a very vital role as they are the ones with the help of which one can convert any E-R diagram into database tables
Entity-Relationship Model: E-R Diagrams
Entity-Relationship Diagrams is a visual tool which is helpful to represent the Entity-Relationship model. It was proposed by Dr. Peter Chen in 1971.
Introduction to Database Management system
Database management system is required to create, manage and delete database. It helps in efficient retrieval, insertion and deletion of data in the database.