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Normalización de un sistema de base de datos

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by

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
Objetivos
Ventajas
Terminología equivalente:
Tercera forma
normal (3FN)
Forma Normal Boyce Codd
Cuarta forma normal (4FN)
Quinta forma normal (5FN)
Conclusión:
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.
Full transcript