The Library Management System is a database project designed to manage the records of books, authors, members, librarians, and loan transactions in a library. This project includes an ...

Lecture 3 presents a method to construct the database schema by means of an entity-relationship diagram for the application domain. Entity-relationship diagram is the data model of this domain.

Entity Relationship (ER) model for database design was developed by Peter Chen of MIT in 1976. This is an intuitive and conceptual representation of the data model. It is normally represented as an ...

Spread the loveAn entity-relationship diagram (ERD) is a visual representation of data that describes the relationships among entities in a database. It is used in database design to illustrate the ...

Relationships and entity relationship diagrams A table in a database holds the attributes for one entity only. Data can then be added in the form of records.

The increasing usage of column-oriented NoSQL drives people to define methods to model the data structure of this technology. The data modelling methods require the support of tools or applications to ...

Occasionally one sees an entity-relationship diagram (ERD) having an unusual characteristic. The unusual element is an entity (or more than one) that seems to have a relationship with every other ...