COMPUTER SCIENCE AND ENGINEERING
DATABASE MANAGEMENT SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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____ decides how the logical DB design is to be physically realised
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Data Administrator (DA)
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Database Administrator (DBA)
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Database Designers (Logical & Physical)
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Application Programmers
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Explanation:
Detailed explanation-1: -Physical data models are used to visualize the physical structure of databases and data files. Logical data models are used to visualize data entities, attributes, keys, and relationships.
Detailed explanation-2: -Definition. Logical database design is the process of transforming (or mapping) a conceptual schema of the application domain into a schema for the data model underlying a particular DBMS, such as the relational or object-oriented data model.
Detailed explanation-3: -A database schema is the skeleton structure that represents the logical view of the entire database. It defines how the data is organized and how the relations among them are associated.
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