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pintu
.illuminato.

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 schema ER progetto

E' possibile avere delle tabelle non collegate ad altre tabelle tramite chiave esterna?
Ad esempio, se ho una tabella AMMINISTRAZIONE con un solo attributo (chiave primaria) che non fa riferimento a nessun'altra tabella, come la rappresento nello schema ER?
10-07-2012 14:14
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