COMPUTER APPLICATIONS
DATABASE MANAGEMENT SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Relational data model
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E-R model
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Object based model
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Semi-structured model
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Detailed explanation-1: -6. As data objects and relationships among them are represented logically in an . Explanation: As data objects and relationships among them are represented logically in an ER model.
Detailed explanation-2: -A data structure diagram (DSD) is a diagram and data model used to describe conceptual data models by providing graphical notations which document entities and their relationships, and the constraints that bind them.
Detailed explanation-3: -A database model shows the logical structure of a database, including the relationships and constraints that determine how data can be stored and accessed. Individual database models are designed based on the rules and concepts of whichever broader data model the designers adopt.