What is the data model?, What are the different types of data model ?, Entity-Relationship model, Relational model
Data model Definition
Data model is a collection of tools for describing data, data relationships, data semantics, data constraints
Types of Data model
- Entity-Relationship model
- Relational model
- Other models:
- object-oriented model
- semi-structured data models
- Older models: network model and hierarchical model
Entity-Relationship model
Relational model
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