An organization wants to enforce data integrity principles
and achieve faster performance/execution in a database
application. Which of the following design principles should
be applied?
A. User (customized) triggers
B. Data validation at the front end
C. Data validation at the back end
D. Referential integrity
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Answer: D
Referential integrity should be implemented at the time of
the design of the database to provide a faster execution
mechanism. All other options are implemented at the
application coding stage.
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