Single and multi valued attributes, Database Management System

Attributes having a one value for a particular entity.

For instance, Age is a single valued attribute of a student entity.

Attributes  that  have  more  than  single  values  for  a  specific  entity  is  known as  a multivalued attribute. Different entities may have dissimilar number of values for these types of attributes. For multivalued attributes we can also states the minimum and maximum number of vales that can be attached. For instance, phone number for a person entity is a multivalued attribute.

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