Quiz z zapytań SQL

Quiz z zapytań SQL

8th Grade

33 Qs

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Quiz z zapytań SQL

Quiz z zapytań SQL

Assessment

Quiz

Computers

8th Grade

Practice Problem

Medium

Created by

Grzegorz Godlewski

Used 2+ times

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33 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jaką instrukcję SQL używa się do modyfikacji danych w tabeli?

UPDATE

MODIFY

ALTER

INSERT

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jakie zapytanie SQL wybierze wszystkie kolumny z tabeli "Employees"?

SELECT * FROM Employees

SHOW Employees

DISPLAY * FROM Employees

GET * FROM Employees

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Co robi zapytanie SQL: DELETE FROM Customers WHERE Age > 40?

Usuwa wszystkie rekordy

Usuwa rekordy, gdzie wiek klientów przekracza 40

Usuwa kolumnę "Age"

Usuwa tabelę "Customers"

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jakie zapytanie SQL służy do zmiany wartości w istniejącym rekordzie?

UPDATE

SET VALUE

INSERT INTO

MODIFY

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Która klauzula SQL służy do filtrowania wyników?

WHERE

FILTER

GROUP BY

ORDER BY

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jakie zapytanie SQL wybierze unikalne wartości z kolumny "City"?

SELECT DISTINCT City FROM Customers

SELECT UNIQUE City FROM Customers

SELECT ALL City FROM Customers

SELECT DIFFERENT City FROM Customers

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jakie zapytanie SQL zliczy liczbę rekordów w tabeli "Orders"?

SELECT COUNT(*) FROM Orders

SELECT COUNT(Orders)

SELECT SUM(*) FROM Orders

SELECT COUNT(OrderID) FROM Orders

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