Subschema is used to hide sensitive information - Database

Q.  Where can a subschema be used?
- Published on 27 Aug 15

a. Present information in different formats
b. Create very different personalized view of the same data
c. Hide sensitive information
d. All of the above

ANSWER: Hide sensitive information


  • Nirja Shah   -Posted on 02 Nov 15
    - The subschema are used for different purposes. Some of them are:

    1. Create very different,personalized view of the same data.

    2. Present information in different formats.

    3. Hide sensitive information by omitting fields from the subschema's description.

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