Er Diagram Cardinality. It was proposed by peter chen in 1971 to create a uniform convention which can be used for relational database and network. Er diagrams are a visual tool which is helpful to represent the er model.
History of er models. Cardinality in er diagram er is actually a substantial degree conceptual data design diagram. Cardinality constraint defines the maximum number of relationship instances in which an entity can participate.
In a relational database model the number of records in a table or relation is called cardinality in the e r model of the database.
Building powerful er diagrams has never been so quick and easy with lucidchart. Cardinality in er diagram er is actually a substantial degree conceptual data design diagram. Cardinality in er diagram stack overflow throughout er diagram cardinality by admin on october 7 2019 er diagram cardinality this is one of the examples of er diagram. It was proposed by peter chen in 1971 to create a uniform convention which can be used for relational database and network.
