COMPUTER APPLICATIONS
DATABASE MANAGEMENT SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Using different file organization should not require change to conceptual or external schemas. This is referring to
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Logical Data Independence
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Physical Data Independence
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Conceptual Data Independence
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User Data Independence
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Explanation:
Detailed explanation-1: -Logical data independence: The ability to change the logical (conceptual) schema without changing the External schema (User View) is called logical data independence.
Detailed explanation-2: -Internal schema This level defines how the data is physically stored on storage devices, such as a hard disk. It provides the complete details of physical storage and access paths.
Detailed explanation-3: -Immunity of the external schemas (or application programs) to changes in the conceptual scheme is referred to as: Physical Data Independence.
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