Subschema can be used to
create very different, personalized views of the same data
present information in different formats
hide sensitive information by omitting fields from the subschema’s description
All of the above
Additional Questions
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In order to use a DBMS, it is important to understand |
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Large computer information system maintains many different computer files. Which amongst them is called a perpetual file? |
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The Management Information system (MIS) structure with one main computer system is called a |
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Which is the simplest file structure? |
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If a calculation is embedded in a form |
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Information can be transferred between the DBMS and a |
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In SQL, which of the following is not a data definition language commands? |
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Lockbox service is used for |
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RS-449/442-A/423-A is |
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a modem that is attached to the telephone system by jamming the phone,s handset into two flexible receptacles in the coupler? |
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