Databáze - teorie 1
Quiz
•
Computers
•
8th - 12th Grade
•
Practice Problem
•
Hard
Liběna Krchňáková
Used 10+ times
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Primární klíč slouží k
uzamčení databáze
zašifrování dat v databázi
jednoznačné identifikaci záznamu
jednoznačné identifikaci pole
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co NEPATŘÍ mezi objekty databáze?
tabulka
dotaz
formulář
filtr
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Je možné transponovat data v tabulce MS Accessu?
ano
ne
za určitých okolností
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Redundance dat znamená jejich poškození a nemožnost dalšího využití
ano
ne
někdy
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jako zástupný symbol pro řetězec alfanumerických znaků používáme
*
@
?
0
6.
MULTIPLE SELECT QUESTION
0 sec • 1 pt
Které z uvedených dotazů patří mezi akční dotazy?
vytvářecí
aktualizační
přidávací
křížový
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Jak se nazývají vazby mezi tabulkami databáze?
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