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Entity-Relationship Modeling
Last Updated: April 13, 2026
Ashish Pratap Singh
11 min read
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Sample Data
Entities, Attributes, and Relationships
ER Diagram Notation
Cardinality: One-to-One (1:1)
Cardinality: One-to-Many (1:N)
Cardinality: Many-to-Many (M:N)
Self-Referencing Relationships
From ER Diagram to Schema
The Full StreamFlow ER Diagram
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Normal Forms in Prac...
