MODELAREA DATELOR - Baze de date
MODELAREA DATELOR - Baze de date
MODELAREA DATELOR - Baze de date
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Exemplu<br />
Intr-o baza <strong>de</strong> <strong>date</strong> <strong>de</strong> personal avem<br />
entitatile:<br />
ANGAJATI si<br />
COPII (ultima contine copii angajatilor<br />
companiei)<br />
Fiecare instanta a entitatii COPII <strong>de</strong>pin<strong>de</strong><br />
<strong>de</strong> o instanta a entitatii ANGAJATI<br />
Rezulta:<br />
ANGAJATI: entitate in<strong>de</strong>pen<strong>de</strong>nta,<br />
COPII: entitate <strong>de</strong>pen<strong>de</strong>nta<br />
F. Radulescu. Curs: <strong>Baze</strong> <strong>de</strong> <strong>date</strong> 36
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