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Name the data in a database that must be independent of its user’s view and any change in logical data must not affect the applications using it.
  • a)
    Logical Data Independence
  • b)
    Physical Data Independence
  • c)
    Data Redundancy
  • d)
    Data Logic
  • e)
    None of these
Correct answer is option 'A'. Can you explain this answer?
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Name the data in a database that must be independent of its user’s vi...
The logical data in a database must be independent of its user’s view (application). Any change in logical data must not affect the applications using it. This rule is called Logical Data Independence. For example, if two tables are merged or one is split into two different tables, there should be no impact or change on the user application. This is one of the most difficult rules to apply. This is the second major rule of DBMS.
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Name the data in a database that must be independent of its user’s vi...
Logical Data Independence is the correct answer.

Logical Data Independence refers to the concept in database management systems where the logical data structure is independent of its user's view. This means that any changes made to the logical data structure should not affect the applications or programs that are using this data.

Explanation:
1. Logical Data Independence:
Logical Data Independence ensures that the logical data structure remains unchanged and independent of how the data is viewed or accessed by different users or applications. It allows for modifications or changes to the logical data structure without impacting the applications that rely on this data.

2. Physical Data Independence:
Physical Data Independence, on the other hand, refers to the concept where the physical storage or implementation of the data is independent of its logical structure. It means that changes in the physical storage of the data should not affect the way users or applications access the data.

3. Data Redundancy:
Data Redundancy refers to the duplication of data in a database. It occurs when the same piece of data is stored in multiple places within the database. Data redundancy can lead to inconsistencies and inefficiencies in the database management system.

4. Data Logic:
Data Logic refers to the rules and relationships that govern the data within a database. It ensures that the data is accurate, consistent, and follows certain constraints or conditions.

In summary, the data in a database that must be independent of its user's view and any changes in the logical data structure must not affect the applications using it is known as Logical Data Independence. This concept allows for modifications to the logical data structure without impacting the applications that rely on the data, ensuring flexibility and adaptability in database management systems.
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Name the data in a database that must be independent of its user’s view and any change in logical data must not affect the applications using it.a)Logical Data Independenceb)Physical Data Independencec)Data Redundancyd)Data Logice)None of theseCorrect answer is option 'A'. Can you explain this answer?
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