Further Normalization of the Data Base Relational Model.¶
Codd, E. F. (1972). Further Normalization of the Data Base Relational Model. Data Base Systems, 6.
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- In databases it is the relational normal-form hierarchy, a sequence of progressively stricter canonical-form conditions that eliminate redundancy and update anomalies.
This sourceIntroduces the relational normal-form hierarchy (2NF, 3NF) eliminating redundancy and update anomalies.
SupportedVerified against the work's full text
Codd defines second and third normal form as successively stronger conditions and shows conversion removes the insertion, update and deletion anomalies of repeated data.
“Note how the undesirable insertion, update and deletion dependencies have disappeared.”
- In databases it is the relational normal-form hierarchy, a sequence of progressively stricter canonical-form conditions that eliminate redundancy and update anomalies.
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