Wat is 'n enkele entiteit in 'n databasis?

Databasisontwerp en -konsepte Quiz

Quiz
•
Instructional Technology
•
12th Grade
•
Medium
BragMist32t BragMist32t
Used 2+ times
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
'n Veld
'n Rekord
'n Instansie
'n Tabel
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wat is die doel van normalisering in databasisontwerp?
Om data te sorteer
Om data te verwyder
Om korrekte databasisontwerp te verseker
Om data te herhaal
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wat is 'n primêre sleutel in 'n databasis?
'n Unieke identifiseerder vir elke rekord
'n Veld wat meer as een keer in 'n tabel kan verskyn
'n Instansie van 'n entiteit
'n Tabel wat 'n enkele entiteit verteenwoordig
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wat is die doel van transaksieverwerkingstelsels in 'n databasis?
Om te verseker dat aksies voltooi word
Om data te herhaal
Om data te sorteer
Om data te verwyder
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wat is die doel van data-integriteit in 'n databasis?
Om data te verwyder
Om data te herhaal
Om data akkuraat en konsekwent te hou
Om data te sorteer
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wat is die doel van fisiese integriteit in 'n databasis?
Om data te beskerm teen verlies of diefstal
Om praktiese probleme te hanteer
Om data te sorteer
Om data te herhaal
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wat is die doel van logiese integriteit in 'n databasis?
Om data te herhaal
Om data akkuraat en konsekwent te hou
Om data te beskerm teen verlies of diefstal
Om data te sorteer
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