What is an Entity Union Diagram
An entity relationship diagram (also called ER diagram or ERD) is a kind of diagram that is meant for graphical presentation of information within a database via different entities, their attributes, and relations among them. This flowchart-like diagram really helps to sound right associated with databaseâ€™s rational structure. It ought to be noted that ERDs are viable only once working with structured and relational data.
Entity relationship diagrams commonly illustrate three components that are key
Under entities in ER diagrams, we suggest uniquely recognizable people, items, ideas, etc. about which information is kept in the device (like rows in databases). Entities are visualized with rectangles and suggested by singular nouns.