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Why ER Diagram is Used?
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ER Diagram in DBMS
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- 1 Introduction
- 2 What is an ER Diagram?
- 3 History of ER Diagram
- 4 Facts of ER Diagram
- 5 Why ER Diagram is Used?
- 6 Components of ER Diagram
- 7 What is Entity?
- 8 What is a Weak Entity?
- 9 Strong Entity Set Vs Weak Entity
- 10 What are Attributes?
- 11 Types of Attributes
- 12 What is Simple Attributes?
- 13 What are Composite Attributes?
- 14 What is Divided Attributes?
- 15 What is Multivalued Attributes?
- 16 What is Cardinality?
- 17 What is One To One Relationship?
- 18 What is One To Many Relationship?
- 19 What is Many To One Relationship?
- 20 Example of ER Diagram
