Question

5) It helps in reducing redundancy of data

Answer 1

Answer:

Data redundancy occurs in database systems which have a field that is repeated in two or more tables. ... Database normalization prevents redundancy and makes the best possible usage of storage. The proper use of foreign keys can minimize data redundancy and reduce the chance of destructive anomalies appearing.

Explanation:

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Answer 2

Normalization is a method of organizing your data to prevent redundancy. Normalization involves establishing and maintaining the integrity of your data tables as well as eliminating inconsistent data dependencies.