DATABASE FUNDAMENTALS
DATABASE CONCEPTS AND STRUCTURES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Categories of Data Models:
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*File server
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*Implementation (representational) data models.
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*High Level or Non-procedural Language
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*Low Level or Procedural Language.
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Explanation:
Detailed explanation-1: -What are the types of data modeling? The three primary data model types are relational, dimensional, and entity-relationship (E-R).
Detailed explanation-2: -Hierarchical database model. Relational model. Network model. Object-oriented database model.
Detailed explanation-3: -The most comprehensive definition of a data model comes from Edgar Codd (1980): A data model is composed of three components: 1) data structures, 2) operations on data structures, and 3) integrity constraints for operations and structures.
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