Pytania dotyczące SQL Alter Table

Pytania dotyczące SQL Alter Table

8th Grade

38 Qs

quiz-placeholder

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Pytania dotyczące SQL Alter Table

Pytania dotyczące SQL Alter Table

Assessment

Quiz

Computers

8th Grade

Medium

Created by

Grzegorz Godlewski

Used 2+ times

FREE Resource

38 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

ak zmienić nazwę tabeli orders na purchases?

ALTER TABLE orders RENAME TO purchases

RENAME TABLE orders TO purchases

ALTER orders TO purchases

CHANGE TABLE orders TO purchases

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Jak dodać nową kolumnę age typu INT do tabeli users?

ALTER TABLE users ADD COLUMN age INT

ALTER TABLE users INSERT COLUMN age INT

ALTER TABLE users CREATE COLUMN age INT

ALTER TABLE users NEW age INT

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Co zrobi ALTER TABLE employees DROP COLUMN department?

Doda kolumnę department

Usunie kolumnę department

Zmodyfikuje kolumnę department

Nic nie zrobi

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Jak ustawić kolumnę email w tabeli customers jako unikalną?

ALTER TABLE customers SET UNIQUE(email)

ALTER TABLE customers MODIFY email UNIQUE

ALTER TABLE customers ADD UNIQUE(email)

ALTER TABLE customers CONSTRAINT UNIQUE email

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Jak zmienić typ kolumny phone_number w tabeli contacts na VARCHAR(15)?

ALTER TABLE contacts CHANGE phone_number VARCHAR(15)

ALTER TABLE contacts MODIFY phone_number VARCHAR(15)

ALTER TABLE contacts ALTER phone_number VARCHAR(15)

ALTER TABLE contacts SET phone_number VARCHAR(15)

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Co zrobi poniższa komenda: ALTER TABLE orders DROP PRIMARY KEY?

Usunie klucz główny

Ustawi klucz główny

Zmieni typ kolumny

Doda nowy klucz główny

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Jak dodać kolumnę status typu ENUM('active', 'inactive') do tabeli accounts?

ALTER TABLE accounts ADD status ENUM('active', 'inactive')

ALTER TABLE accounts NEW status ENUM('active', 'inactive')

ALTER TABLE accounts SET COLUMN status ENUM('active', 'inactive')

ALTER TABLE accounts ALTER COLUMN status ENUM('active', 'inactive')

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