DATABASE FUNDAMENTALS
WHAT IS DATABASE MANAGEMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The Network Model
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The Conceptual Model
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Conceptual schema
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None of the above
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Detailed explanation-1: -The conceptual data model is a structured business view of the data required to support business processes, record business events, and track related performance measures. This model focuses on identifying the data used in the business but not its processing flow or physical characteristics.
Detailed explanation-2: -The Entity Relationship Model (ERM) is most commonly used during conceptual design. The resulting Entity Relationship Diagrams (ERD) provide a data-centric, structural view on the database.
Detailed explanation-3: -There are three different types of data models – conceptual, logical and physical. Each data model has a specific purpose, which is primarily defined by the level of operational detail. Conceptual data models are built at the first stage of the data modeling process.