RDBMS ENTITY RELATIONSHIPS DIAGRAMS.pptx

RDBMS - ER DIAGRAMS

1. ER DIAGRAMS UNIT 1

2. An Entity Relationship (ER) Diagram is a type of flowchart that illustrates how “entities” such as people, objects or concepts relate to each other within a system . The overall logical structure of a database can be expressed graphically by E-R diagram. Database can be represented using the notations . The relative simplicity and pictorial clarity of diagramming technique in large part of E-R model. In ER diagram, many notations are used to express the cardinality.

3. E-R diagram corresponding to customer & loan