Buongiorno a tutti, ho un piccolo problema ma grande per me poco
esperto. Forse è un mio errore di impostazione del DB, o non vedo la
relazione nell'ottica giusta o magari semplicemente mi sono perso in un
bicchier d'acqua ma....
ho un file fornitori, con una tabella "fornitori" che contiene i campi
anagrafici del fornitore come:
-ID fornitore (Chiave primaria)
-Nome
-pIva
-Indirizzo
Ogni fornitore ha una tipologia diversa: uno è albergo, l'altro
ristorante, ecc.
quindi ho creato delle tabelle "albergo", "ristorante ", Ecc. che
contengono nei campi, oltre a una chiave primaria, le info essenziali e
specifiche per ciascuna tipologia. (tipo nella tabella albergo "N°
stanze" e "distanza dall'arepoprto" )
Come le metto in relazione? le relaziono direttamente? Creo una tabella
di collegamento "tipologie" ?
Grazie davvero per qualsiesi aiuto!!! e a buon rendere...
1  1544 
Filippo:
Ho trasmesso una copia di una base di dati di esempio al vostro email.
Buona fortuna!
Alexandre Bejerman
Montreal, Canada
Plume wrote:
Buongiorno a tutti, ho un piccolo problema ma grande per me poco
esperto. Forse è un mio errore di impostazione del DB, o non vedo la
relazione nell'ottica giusta o magari semplicemente mi sono perso in un
bicchier d'acqua ma....
ho un file fornitori, con una tabella "fornitori" che contiene i campi
anagrafici del fornitore come:
-ID fornitore (Chiave primaria)
-Nome
-pIva
-Indirizzo
Ogni fornitore ha una tipologia diversa: uno è albergo, l'altro
ristorante, ecc.
quindi ho creato delle tabelle "albergo", "ristorante ", Ecc. che
contengono nei campi, oltre a una chiave primaria, le info essenziali e
specifiche per ciascuna tipologia. (tipo nella tabella albergo "N°
stanze" e "distanza dall'arepoprto" )
Come le metto in relazione? le relaziono direttamente? Creo una tabella
di collegamento "tipologie" ?
Grazie davvero per qualsiesi aiuto!!! e a buon rendere...
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