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Kap 05 Modellator Datamodelleringsverktøy

Kap 05 Modellator Datamodelleringsverktøy. Modellator - Enkelt eksempel. Entitet. Relasjon. Modellator - Entitets-opplysninger. Entitetsnavn. Antall desimaler. Fremmednøkkel. Attributter. ID. Datatype. Lengde. Nødvendig (NOT NULL). Modellator - Relasjons-opplysninger.

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Kap 05 Modellator Datamodelleringsverktøy

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  1. Kap 05 Modellator Datamodelleringsverktøy

  2. Modellator - Enkelt eksempel Entitet Relasjon

  3. Modellator - Entitets-opplysninger Entitetsnavn Antall desimaler Fremmednøkkel Attributter ID Datatype Lengde Nødvendig (NOT NULL)

  4. Modellator - Relasjons-opplysninger

  5. Modellator - Notasjon Kråkefot Selger Adr Uten attributter Selger Adr Med attributter SNr Navn *PNr PNr Sted

  6. Modellator - Notasjon Selger Adr Kråkefot Selger Adr Gaffel Selger Adr Pil Selger Adr Pil / Dobbeltpil 1..1 Selger Adr Antall 0..m Selger Adr Niam-basert Selger Adr Kan / Må

  7. End

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