Question: What is the best practice for derived data? Derived data is a key part of a normalized database; It should always be stored. The derivation

What is the best practice for derived data?
Derived data is a key part of a normalized database; It should always be stored.
The derivation of calculated data fields is not important for the DBA.
Fields should be calculated; derived data should not be stored.
Derived data is related to Foreign Key and Primary Key relationships.
What is the best practice for derived data?

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