
Datové modelování (3. cvičení)
Authored by Hana Chalupová
Information Technology (IT)
9th - 12th Grade
Used 5+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co je příkladem entity?
Jméno zákazníka
Produkt
Věk
E-mailová adresa
2.
MULTIPLE SELECT QUESTION
1 min • 2 pts
Jaké vlastnosti má primární klíč ?
Unikátnost
Neprázdnost
Znovupoužitelnost
Neměnnost
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Co je datové modelování?
Proces zálohování
Proces správy databází
Proces navrhování struktury dat
Proces analyzování dat
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Který z následujících formátů je používán pro vizualizaci datových modelů?
Tabulka
Graf
ER diagram
Stavový diagram
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co je atribut?
Vztah mezi dvěma entitami
Vlastnost nebo detail entity
Kolekce dat
Index pro rychlé vyhledávání
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Jaký je typický vztah mezi zákazníkem a objednávkou?
1:1
(jedna k jedné)
M:N
(mnoho ku mnoha)
1:N
(jedna ku mnoha)
žádný vztah
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Co je v datovém modelování "preferovaná kvalita jídla" z dat naší hry?
Entita "Kvalita"
Atribut entity "Kuchyně"
Atribut entity "Zákazník"
Entita "Jídlo"
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