ERModell
Authored by G Wallraf
Other
12th Grade
Used 12+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wobei handelt es sich um eine 1:N Beziehung?
Lehrer - Klasse
Artikel - Auftrag
Kunde - Auftrag
Auto - Kennzeichen
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Wobei handelt es sich um M:N Beziehungen?
Schüler - Lehrer
Artikel - Auftrag
Kunde - Auftrag
Schüler - Schülerausweis
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wobei handelt es sich um eine 1:1 Beziehung?
Lehrer - Klasse
Artikel - Auftragsposition
Kunde - Auftrag
Auto - Kennzeichen
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Was ist das? Ein eindeutig identifizierbares Objekt oder Sachverhalt der realen Welt?
Attribut
Entität
Kardinalität
Primärschlüssel
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Was ist das? Datenfeld in einer Tabelle, das den gespeicherten Datensatz eindeutig beschreibt?
Primärschlüssel
Entität
Attribut
Raute
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Was ist das? Er/Sie/Es darf in einer Tabelle nicht mehrmals vorkommen?
Primärschlüssel
Entität
Attribut
Raute
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Was ist das? Eigenschaften eines Datensatzes?
Attribut
Entität
Kardinalität
Entitätstyp
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