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Day 5 Normalization - Normalization Normalization The...

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Normalization
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Normalization The process of removing interdependent and redundant data from a database model in order to improve data consistency, maintainability, storage efficiency and database scalability Normalization does not necessarily mean database simplification
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Advantages of Normalization Duplicate data is minimized, thus reducing storage requirements and simplifying maintenance. Pre-calculated values are eliminated, thus reducing storage requirements and improving data quality.
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Advantages of Normalization Each table in a normalized database contains information about a single subject, so each table tends to have fewer indices. This makes insert, update and delete operations more efficient. A table can only have a single clustered index. Clustered indices tend to produce faster data retrievals. Normalized databases typically have more tables than non-normalized databases, so normalized databases typically have more clustered indices.
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Disadvantages of Normalization
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