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Lesson Navigation IconRelational database model

Unit Navigation IconConcepts

Unit Navigation IconTransforming ER-schema

Unit Navigation IconData integrity

LO Navigation IconKey integrity

LO Navigation IconEntity integrity

LO Navigation IconReferntial integrity

LO Navigation IconIntegrity endangering

Unit Navigation IconNormalization

Unit Navigation IconSummary

Unit Navigation IconRecommended Reading

Unit Navigation IconGlossary

Unit Navigation IconBibliography

Unit Navigation IconMetadata

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Data integrity

Integrity or consistency stands for the quality and reliability of data of a database system. A database is consistent if the data reflects the referenced objects correctly. It is inconsistent if there exist ambiguous or contradictory tuples, relations or tables in the database.

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