Relationship(cont........)

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Relationships in Database Relationship

Relationship is nothing but an association among two or more entities. Entities take part in relationships. We can often identify relationships with verbs or verb phrases. As shown in Fig. 12.1
  1. One-to-One Relationships
  2. One-to-Many Relationships
  3. Many-to-One Relationships
  4. Many-to-Many Relationships
Relationship Types Diagram
Fig. 12.1


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