The attribute AGE is calculated from DATE_OF_BIRTH. The attribute AGE isa.Derivedb.Multi valuedc.Composited.Single valued
Question
The attribute AGE is calculated from DATE_OF_BIRTH. The attribute AGE isa.Derivedb.Multi valuedc.Composited.Single valued
Solution
The attribute AGE is a derived attribute. This is because it is calculated from another attribute, which in this case is DATE_OF_BIRTH. Derived attributes are not stored in the database, but rather calculated or derived from other attributes when needed.
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