SQL matura 2021

SQL matura 2021

12th Grade

7 Qs

quiz-placeholder

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SQL matura 2021

SQL matura 2021

Assessment

Quiz

Computers

12th Grade

Practice Problem

Medium

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Wynikiem zapytania SELECT produkt FROM produkty WHERE (cena = 2 OR cena = 4) jest cyrkiel

Prawda

Fałsz

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Wynikiem zapytania SELECT AVG(cena) FROM produkty WHERE sztuk IN (125, 160) jest 5

Prawda

Fałsz

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Wynik zapytania SELECT * FROM tabela1 JOIN tabela2 ON tabela1.pole = tabela2.pole może być pusty przy niepustych tabelach tabela1 oraz tabela2.

Prawda

Fałsz

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Wynikiem zapytania SELECT SUM(sztuk) FROM produkty WHERE (cena = 1 OR cena = 2) jest 660

Prawda

Fałsz

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Zapytanie postaci SELECT * FROM tabela1 WHERE pole LIKE (...) może w pewnych warunkach dać wszystkie rekordy z tabeli tabela1.

Prawda

Fałsz

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Zapytanie UPDATE może zmienić wartości pól w bazie danych.

Prawda

Fałsz

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Wynikiem zapytania SELECT COUNT(cena) FROM produkty WHERE cena BETWEEN 2 AND 4 jest 2

Prawda

Fałsz

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