Database Concepts and SQL Quiz

Database Concepts and SQL Quiz

12th Grade

20 Qs

quiz-placeholder

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Database Concepts and SQL Quiz

Database Concepts and SQL Quiz

Assessment

Quiz

English

12th Grade

Hard

Created by

Sandisiwe Mjuleni

Used 1+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a primary key in a database?

A type of foreign key

A method of data validation

A type of data type

A unique identifier for a record in a table

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which SQL statement is used to retrieve data from a database?

INSERT

SELECT

UPDATE

DELETE

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the WHERE clause do in an SQL query?

Sorts the results

Joins tables

Filters records based on a condition

Groups records

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of data validation?

To ensure data integrity

To create tables

To delete records

To sort data

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a data type check?

Ensuring age is between 0 and 120

Verifying a name is less than 50 characters

Ensuring a number is entered in a numeric field

Checking if a field is not blank

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the DISTINCT keyword do in SQL?

Returns all records

Filters records

Returns unique values

Sorts records

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which SQL command is used to add new rows to a table?

DELETE

INSERT

UPDATE

SELECT

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