Relazione 1 a 1 tra due entità. La moglie ha solo un marito. La mamma può avere un figlio

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Algo and Math

29
Apr

Relazione 1 a 1 tra due entità. La moglie ha solo un marito. La mamma può avere un figlio

by pasquale.clarizio |
0 Comment

Anche se ufficialmente la Mamma può avere 1 o più Figli

Ho definito l'età un VarChar da 45 caratteri. Ma avrei potuto semplicemente definirlo con un intero.

Il tipo di dato è importante, ma dipende dal Contesto

Post Views: 31

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pasquale.clarizio

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