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Tabelle riassuntive traduzioni dal modello E-R al relazionale

Legenda: X,Y qualunque tra le cardinalità ammesse * Ammesso null ------ chiave alternativa. Tabelle riassuntive traduzioni dal modello E-R al relazionale.

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Tabelle riassuntive traduzioni dal modello E-R al relazionale

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  1. Legenda: X,Y qualunque tra le cardinalità ammesse * Ammesso null ------ chiave alternativa Tabelle riassuntive traduzioni dal modello E-R al relazionale

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