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What is the difference between derived attribute and normal attribute?
Wiki User
∙ 13y ago
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
Wiki User
∙ 13y ago
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