ER Model Part-1 | Entity, Entity Type, Entity Set | Strong Entity | Weak Entity | DBMS Lecture 13
With examples learn What is entity in ER Model i.e Entity Relationship model in DBMS? Introduction of ER Model, What is an entity type and What is an entity set? in this DBMS Lecture 13
What is the difference between strong entity and weak entity?
Entities are any thing or object existing in a real world having its own independent existence.
Now an entity can be tangible or intangible in nature.
A database usually contains multiple entities that have attributes and relations with each other.
To represent all entities , their attributes and relationships amongst them, ER Model( Entity Relationship model) is used.
This video DBMS Lecture 13 gives concept and examples of-
Introduction to ER model
Entity and Example of entity
Entity Set and Example of Entity Set
Strong Entity and Example of Strong Entity
Weak entity and Example of Weak Entity
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