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Definition of "Derived Attribute" |
Derived attribute whose value may be calculated (derived) from other Attribute A normal attribute is an attribute present in a schema and which has to be entered while entering a tuple. A derived Attribute is one which can be inferred(derived) from another normal attribute and it need not be a part of a schema. For e.g. In a schema, Date-of-Birth is a normal attribute.While Age is a derived attribute which can be derived from the Date-of-Birth. |
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