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Short guides to the fundamentals of database modeling, with diagrams and worked examples you can rebuild in ERDPlus.
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- 1
ER Diagram Basics
- Entities
- Attributes
- Relationships and Cardinality Constraints
- Types of Relationships
- ER Diagram Example
- 2
Relational Modeling Basics
- Relational Tables
- Primary Key
- Mapping an Entity from an ERD to a Relational Table in a Relational Schema
- Foreign Key
- Mapping 1:M relationships from an ERD to a Relational Schema
- Mapping M:N relationships from an ERD to a Relational Schema
- Mapping 1:1 relationships from an ERD to a Relational Schema
- Relational Schemas
More items will be added over time.