SQL Grundlagen
Quiz
•
Computers
•
University
•
Practice Problem
•
Medium
Christian Drumm
Used 3+ times
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20 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Das Schlüsselwort ……………. entfernt mehrfache Zeilen aus dem Ergebnis einer SELECT-Anweisung.
Answer explanation
Beispiele für die Verwendung von DISTINCT gibt es hier: https://www.w3schools.com/Sql/sql_distinct.asp
2.
REORDER QUESTION
30 sec • 1 pt
Bringe die Bestandteile des SELECT-Statements in die richtige Reihenfolge.
ORDER BY
DESC
WHERE
SELECT
FROM
Answer explanation
SELECT column1, column2, ...
FROM table_name
WHERE condition
ORDER BY column1, column2, ... ASC|DESC
3.
DRAG AND DROP QUESTION
30 sec • 1 pt
Ziehen Sie die richtige Option in das richtige Feld
SELECT (a) (b) Benutzer (c) (d) ='user1'
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Der Befehl zum Entfernen von Zeilen aus einer Tabelle 'CUSTOMER' lautet:
REMOVE FROM CUSTOMER ...
DROP FROM CUSTOMER ...
DELETE FROM CUSTOMER WHERE ...
UPDATE FROM CUSTOMER ...
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mit welchen SQL-Befehl kann "Eggert" in der Spalte LastName der Tabelle Users in "Drumm" geändert werden?
UPDATE User SET LastName = "Drumm" INTO LastName = "Eggert"
MODIFY Users SET LastName = "Drumm" WHERE LastName = "Eggert"
MODIFY Users SET LastName = "Eggert" INTO LastName = "Drumm"
UPDATE Users SET LastName = "Drumm" WHERE LastName = "Eggert"
6.
DRAG AND DROP QUESTION
30 sec • 1 pt
Vervollständigen Sie die SQL-Abfrage, indem Sie die richtige Option in die richtigen Felder ziehen.
Die SQL-Abfrage soll die Details der Mitarbeiter ausgeben, die ein „e“ im Namen haben. Die Ausgabe soll in absteigender Reihenfolge des Gehalts erfolgen.
SELECT * (a) employes (b) name LIKE "%e%" (c) SAL (d) ;
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Welche SQL-Anweisung wird verwendet, um Daten in einer Datenbank zu aktualisieren?
MODIFY
UPDATE
SAVE
DELETE
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