SQL Server Basic Data Manipulation – Beginner-Level Quiz

SQL Server Basic Data Manipulation - Beginner Level Quiz

This quiz tests your knowledge of basic data manipulation in SQL Server. It covers basic operations such as inserting, updating, deleting data, and using basic functions. Each question is multiple-choice, with one correct answer.

1 / 20

Which function is used to find the minimum value in a column?

A) MIN()
B) LEAST()
C) LOWEST()
D) SMALLEST()

LOWEST()

MIN()

LEAST()

SMALLEST()

2 / 20

How do you retrieve the first 10 records from a table?

SELECT * FROM table_name FETCH FIRST 10 ROWS ONLY;

SELECT TOP 10 * FROM table_name;

SELECT FIRST 10 * FROM table_name;

SELECT * FROM table_name LIMIT 10;

3 / 20

What is the purpose of the HAVING clause?

To filter records before the GROUP BY clause

To sort the results

To filter records after the GROUP BY clause

To specify the columns to be displayed

4 / 20

What does the COALESCE() function do?

Converts a value to a different data type

Returns the first non-null value in a list

Splits a string into multiple parts

Combines multiple columns into one

5 / 20

What does the ROUND() function do?

Finds the nearest integer

Calculates the square root of a number

Rounds a number to a specified number of decimal places

Finds the absolute value of a number

6 / 20

Which SQL statement is used to create a new table?

ADD TABLE table_name (column1 data_type, column2 data_type);

CREATE TABLE table_name (column1 data_type, column2 data_type);

NEW TABLE table_name (column1 data_type, column2 data_type);

INSERT TABLE table_name (column1 data_type, column2 data_type);

7 / 20

What does the LEN() function do?

Returns the length of a row

Returns the length of a table

Returns the length of a string

Returns the length of a column

8 / 20

How do you concatenate two strings in SQL Server?

string1 + string2

string1 || string2

CONCAT(string1, string2)

string1 & string2

9 / 20

Which SQL statement is used to create a view?

A) CREATE VIEW view_name AS SELECT column1, column2 FROM table_name;
B) ADD VIEW view_name AS SELECT column1, column2 FROM table_name;
C) NEW VIEW view_name AS SELECT column1, column2 FROM table_name;
D) INSERT VIEW view_name AS SELECT column1, column2 FROM table_name;

INSERT VIEW view_name AS SELECT column1, column2 FROM table_name;

CREATE VIEW view_name AS SELECT column1, column2 FROM table_name;

ADD VIEW view_name AS SELECT column1, column2 FROM table_name;

NEW VIEW view_name AS SELECT column1, column2 FROM table_name;

10 / 20

What does the IS NULL condition do?

Checks if a column has no value

Checks if a column has a value

Checks if a column is empty

Checks if a column is zero

11 / 20

How do you change the name of a column in SQL Server?

A) RENAME COLUMN old_name TO new_name;
B) ALTER COLUMN old_name RENAME TO new_name;
C) EXEC sp_rename ‘table_name.old_name’, ‘new_name’, ‘COLUMN’;
D) MODIFY COLUMN old_name TO new_name;

ALTER COLUMN old_name RENAME TO new_name;

RENAME COLUMN old_name TO new_name;

MODIFY COLUMN old_name TO new_name;

EXEC sp_rename ‘table_name.old_name’, ‘new_name’, ‘COLUMN’;

12 / 20

How do you rename a table in SQL Server?

MODIFY TABLE old_name TO new_name;

ALTER TABLE old_name RENAME TO new_name;

RENAME TABLE old_name TO new_name;

EXEC sp_rename ‘old_name’, ‘new_name’;

13 / 20

What does the TRUNCATE statement do?

Deletes the table structure

Deletes all rows from a table and can be rolled back

Deletes all rows from a table and cannot be rolled back

Deletes specific rows from a table

14 / 20

Which SQL Server clause is used to sort the result set?

ORDER BY

ARRANGE BY

GROUP BY

SORT BY

15 / 20

Which function is used to count the number of rows in a table?

TOTAL(*)

NUMBER(*)

COUNT(*)

SUM(*)

16 / 20

How do you add a new column to an existing table?

INSERT COLUMN column_name data_type;

MODIFY TABLE table_name ADD column_name data_type;

ALTER TABLE table_name ADD column_name data_type;

ADD COLUMN column_name data_type;

17 / 20

Which of the following SQL keywords is used to retrieve unique values?

DIFFERENT

DISTINCT

UNIQUE

SEPARATE

18 / 20

How do you remove a column from a table?

DROP COLUMN column_name;

ALTER TABLE table_name DROP COLUMN column_name;

REMOVE COLUMN column_name;

DELETE COLUMN column_name;

19 / 20

What does the SUM() function do?

Finds the highest value in a column

Finds the average value in a column

Counts the number of rows in a table

Adds up all the values in a column

20 / 20

How do you retrieve records where a column value is not null?

SELECT * FROM table_name WHERE column_name IS NOT BLANK;

SELECT * FROM table_name WHERE column_name IS NOT EMPTY;

SELECT * FROM table_name WHERE column_name IS NOT NULL;

SELECT * FROM table_name WHERE column_name IS NOT ZERO;

Your score is

The average score is 49%

Use this beginner-level quiz on fundamental SQL Server basic data manipulation to improve your data manipulation skills. This quiz covers fundamental functions like COUNT, SUM, and AVG and important SQL operations like INSERT, UPDATE, and DELETE.

The quiz is ideal for beginners who want to solidify their understanding of SQL Server data manipulation techniques. Our carefully selected multiple-choice questions will help you test your knowledge and improve your skills.

All the best.