draw the notation for multivalued and derived attribute
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Multivalued attribute: Double oval is the notation
If an attribute can have more than one value then it is called multivalued attribute.
For eg. A teacher can be assigned multiple class in a school to handle his / her subject
Derived attribute: Dotted oval is the notation
An attribute based on one another connected attribute is called Derived attribute. For Example, A circle can have radius, degree and we can also derive diameter based on radius.
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l don't understand this topic plz see the diagram
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