Entity Relationship Diagrams | basic of ER Model क्या है! Full Explained
In this video we will learn about ER model entity relationship diagram we will learn about entity relationship attribute types of attribute types of relationship and how to make an ER diagram.
watch the video till end for clear your concept.
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Entity-Relationship (ER) Model
Topics discussed:
1. Terminologies in relation to the ER Model:
a. Entity.
b. Attributes:
• Composite vs Simple Attributes
• Single-valued vs Multivalued Attributes
• Derived vs Stored Attributes
c. Complex Attributes.
d. Null values.
e. Entity Type, Entity Set.
f. Key Attribute & Value Set of Attributes.