
Databáze - tabulky a relace
Authored by Liběna Krchňáková
Computers
9th - 12th Grade
Used 7+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Řádek v databázové tabulce nazýváme
záznam
pole
dotaz
datový typ
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Je možné transponovat tabulku v databázi?
ano
ne
za určitých podmínek ano
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Datový typ určuje typ ukládaných dat v konkrétním
poli
záznamu
dotazu
relaci
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co nepatří mezi objekty databáze?
tabulka
dotaz
formulář
relace
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co nepatří mezi typy relací?
1 : 1
1 : n
m : n
1 : 0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
K čemu slouží primární klíč?
k uzamčení databáze
k zašifrování obsahu
k jednoznačné identifikaci záznamu
k jednoznační identifikaci pole
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Je možné v databázové tabulce upravit šířku pole?
ano
ne
pouze v některých případech
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