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IT Database
Fragen für die SQL-Klausur Q2.2
By
An H
Created Date 06.21.22
Last Updated 06.22.22
Viewed 4 Times
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Topics of this game:
Was ist ein Attribut?
Was ist ein Datensatz?
Wofür steht die Abkürzung ER?
Welche Eigenschaft hat ein Primärschlüssel?
Welche Eigenschaft hat ein Fremdschlüssel?
Was ist eine Redundanz?
Was behebt die Normalisierung NICHT?
Wer bekommt den Fremdschlüssel in einer 1:n Beziehung?
Wer bekommt den Fremdschlüssel in einer 1:1 Beziehung ?
Wer bekommt den Fremdschlüssel in einer m:n-Beziehung?
Was macht SELECT * FROM moebel WHERE id=5?
Was macht SELECT name FROM kunde WHERE alter = (SELECT MAX(alter) FROM kunde)
SELECT COUNT(ProductID) FROM Products;
SELECT * FROM Customers WHERE CustomerName LIKE '%a%';
SELECT * FROM Customers WHERE Country IN ('Germany', 'France', 'UK');
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