C Programming | Networking | General Computer | Exam Questions & Answers | How To Article | Tips & Tricks | PHP Programming | Source Code | PHP | MySql | Pointer | Operators | Constant | Variable | Keyboard | Algorithm | Flowchart | Storage Classes | Function | Ms-Excel, basic of Excel, learn Excel, Online tutorial of Ms-Excel, Excel step by step learn,
plz xplain how to draw entity relationship diagram according to the problem given
ER Diagram is a tool for Data Modeling.It depicts data in terms of entities and relationships described by the data. There are three main components of ERD as Entities, Attribute and Relationships.Terms to draw ER Diagram: 1.Cardinality: Minimum and maximum number of occurrences of one entity that may be related to a single occurrence of the other entity. 2.Degree: Number of entities that participate in the relationship. 3.Relationship: Relationship among differ-differ entity.