SQL and Database Concepts Quiz

SQL and Database Concepts Quiz

12th Grade

20 Qs

quiz-placeholder

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SQL and Database Concepts Quiz

SQL and Database Concepts Quiz

Assessment

Quiz

Computers

12th Grade

Practice Problem

Medium

Created by

Craig Murphy

Used 3+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What does the SELECT clause do in SQL?

It retrieves data from a database.

It inserts data into a database.

It updates data in a database.

It deletes data from a database.

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

How do you filter records in a SQL query?

Using the WHERE clause

Using the SELECT clause

Using the FROM clause

Using the JOIN clause

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the purpose of the ORDER BY clause in SQL?

To filter records based on a condition

To sort the result set in ascending or descending order

To group records that have the same values

To join two or more tables

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

How can you retrieve unique values from a column?

Use the DISTINCT keyword

Use the GROUP BY clause

Use the UNIQUE function

Use the SELECT ALL statement

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

How do you select all columns from a table named "Employees"?

SELECT * FROM Employees;

SELECT all FROM Employees;

SELECT columns FROM Employees;

SELECT * FROM table Employees;

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is a Data Lake?

A centralized repository for storing large amounts of structured and unstructured data

A type of database optimized for online transaction processing

A tool for data visualization and reporting

A programming language used for data analysis

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is a Data Warehouse?

A system used for reporting and data analysis

A type of database optimized for transaction processing

A software development methodology

A network security protocol

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