ENTITY, ENTITY SET, ENTITY TYPES & TYPES OF ENTITY TYPE IN DBMS || TYPES OF ENTITY TYPE WITH EXAMPLE

Опубликовано: 01 Январь 1970
на канале: Sundeep Saradhi Kanthety

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ENTITY
An Entity is a real world object having characteristics

TANGIBLE ENTITY
An Entity having Physical Existence

INTANGIBLE ENTITY
An Entity exists Logically but dont have physical existence

ENTITY SET
Group of Entities having same attributes

ENTITY TYPE
An Entity set representing with a name called Entity Type

STRONG ENTITY TYPE
An Entity Type having key attribute

WEAK ENTITY TYPE
An Entity Type doesn't have key attribute

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