Home » Oracle » 1z0-591 » What is the process in which there is redundancy of data to improve performance?
What is the process in which there is redundancy of data to improve performance?
A. Redundancy
B. Normalization
C. Denormalization
D. Granularity
E. Cardinality
Correct Answer: C
Explanation/Reference:
Denormalization is the process of intentionally backing away from normalization to improve performance by suppressing join and permitting the use of star transformation technique.
Denormalization should not be the first choice for improving performance and should only be used for fine tuning of a database for a particular application.
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