Quiz o SQL

Quiz o SQL

9th Grade

10 Qs

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Quiz o SQL

Quiz o SQL

Assessment

Quiz

Computers

9th Grade

Medium

Created by

Mateusz Kamiński-Drąg

Used 3+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

Media Image

Która klauzula w SQL służy do sortowania wyników zapytania?

FILTER

GROUP BY

ORDER BY

HAVING

2.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

Media Image

Jakie słowo kluczowe pozwala grupować wyniki w SQL?

SORT

GROUP BY

FILTER

JOIN

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Który operator logiczny służy do filtrowania danych w WHERE?

AND

ORDER

SUM

DISTINCT

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Która z poniższych funkcji agregujących w SQL zwraca liczbę wierszy w grupie?

COUNT()

SUM()

AVG()

MIN()

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Które z poniższych zapytań zwróci wiersze posortowane rosnąco według kolumny "name"?

SELECT * FROM users GROUP BY name;

SELECT * FROM users ORDER BY name DESC;

SELECT * FROM users ORDER BY name ASC;

SELECT * FROM users SORT BY name;

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Co oznacza klauzula HAVING w SQL?

Filtrowanie wyników po sortowaniu

Filtrowanie wyników po zastosowaniu GROUP BY

Tworzenie podzapytań

Definiowanie indeksów

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jakie polecenie utworzy indeks na kolumnie "price" w tabeli "products"?

ADD INDEX price ON products;

CREATE INDEX idx_price ON products(price);

CREATE TABLE INDEX price ON products;

MAKE INDEX ON products(price);

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