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Lesson Navigation IconRelational database model

Unit Navigation IconConcepts

Unit Navigation IconTransforming ER-schema

Unit Navigation IconData integrity

Unit Navigation IconNormalization

Unit Navigation IconSummary

Unit Navigation IconRecommended Reading

Unit Navigation IconGlossary

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The relational database model

The relational database model is used in most of today's commercial databases. It is used since the early 80ies and was developed 1970 by E. F. Codd. The relational database model is based on a mathematical concept where relations are interpreted as tables.

The focus of this lesson lies in the conversion of a conceptual into a logical data scheme (the relational database model) using an entity-relationship-schema. You will find more information about schemas in the lesson about Database models, schemas and instances.

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