BAZE DE DATE
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Cardinalitatea minimă poate fi:
✅✨
❌
❌
❌
❌
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Cheia primară poate fi:
✅✨
❌
❌
❌
❌
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Analiza semnificației semantice a datelor:
0%
0%
❌
0%
❌✨
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Reducerea redundanței datelor poate asigura:
❌✨
0%
0%
0%
0%
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Coloanele care participă la o restricție de unicitate:
❌✨
❌
✅
❌
❌
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Câte forme poate lua integrarea aplicaţiilor:
✅✨
✅✨
✅✨
✅
✅✨
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Cardinalitatea maximă poate fi:
❌
0%
0%
0%
0%✨
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Un tabel poate avea cel mult:
✅
❌
❌
❌
❌
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Funcţiile vizualizărilor sunt:
❌
✅
❌
❌
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O valoare nulă:
❌
✅
❌
❌
❌
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