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DATA MODEL

Data Model can be defined as abstract model whose purpose is to describe how data can be used and represented effectively. A data model is a picture or description which shows how data are to be arranged to serve a specific purpose it determines the structure of data and the information is to be contained, how the information will be used and how items in database will be related to each other.

Types of data model

Database model
Data structure diagram
Entity-relationship model
Geographic data model
Generic data model
Semantic data model
Database Model: A databa

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