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Job-Ready SQL in an Afternoon - Altering Tables

Job-Ready SQL in an Afternoon - Altering Tables

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explains how to use the SQL 'Alter Table' command to modify database tables. It covers adding, dropping, and modifying columns, including changing data types. The tutorial emphasizes the importance of understanding situational needs and encourages using online resources for specific queries.

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of the Alter Table command?

To create a new table

To delete a table

To modify the structure of an existing table

To backup a table

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When adding a new column to a table, what must you specify?

The column's default value

The table's primary key

The table's foreign key

The column's name and data type

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which command is used to remove a column from a table?

Delete column

Erase column

Drop column

Remove column

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a reason to change the data type of a column?

To accommodate larger values

To improve query speed

To reduce the table size

To change the column name

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do if you need to perform a complex table alteration?

Consult a database administrator

Search online for syntax examples

Recreate the table from scratch

Use trial and error

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