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Normalización de un sistema de base de datos

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barbara salgado

on 1 May 2017

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Transcript of Normalización de un sistema de base de datos

¿Qué es?
Segunda forma normal (2FN)
Primera forma normal (1FN)
Normalización de un sistema de base de datos
Terminología equivalente:
Tercera forma
normal (3FN)
Forma Normal Boyce Codd
Cuarta forma normal (4FN)
Quinta forma normal (5FN)
1FN: Elimina grupos repetidos
2FN: Elimina dependencias funcionales
3FN: Elimina dependencias transitivas
FNBC: Eliminar las anomalías de dependencia funcional restantes.
4FN: Elimina dependencias multivaluadas
5FN: Elimina las anomalías restantes.
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