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 SQL Server clause is used to sort the result set?

ORDER BY

GROUP BY

ARRANGE BY

SORT BY

2 / 20

How do you rename a table in SQL Server?

EXEC sp_rename ‘old_name’, ‘new_name’;

ALTER TABLE old_name RENAME TO new_name;

RENAME TABLE old_name TO new_name;

MODIFY TABLE old_name TO new_name;

3 / 20

What does the IS NULL condition do?

Checks if a column is zero

Checks if a column has no value

Checks if a column has a value

Checks if a column is empty

4 / 20

What does the COALESCE() function do?

Converts a value to a different data type

Combines multiple columns into one

Returns the first non-null value in a list

Splits a string into multiple parts

5 / 20

What does the SQL statement SELECT AVG(salary) FROM employees;do?

Calculates the average salary of all employees

Finds the highest salary among employees

Finds the lowest salary among employees

Calculates the total salary of all employees

6 / 20

Which SQL statement is used to insert new data into a table?

ADD INTO

ADD NEW

INSERT NEW

INSERT INTO

7 / 20

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

UNIQUE

SEPARATE

DISTINCT

DIFFERENT

8 / 20

Which of the following is the correct syntax to update a record in a table?

CHANGE table_name SET column1 = value1 WHERE condition;

UPDATE table_name SET column1 = value1 WHERE condition;

ALTER table_name SET column1 = value1 WHERE condition;

MODIFY table_name SET column1 = value1 WHERE condition;

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;

NEW VIEW view_name AS SELECT column1, column2 FROM table_name;

ADD VIEW view_name AS SELECT column1, column2 FROM table_name;

CREATE VIEW view_name AS SELECT column1, column2 FROM table_name;

10 / 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’;

11 / 20

Which SQL statement is used to change the data type of a column?

MODIFY COLUMN column_name data_type;

CHANGE COLUMN column_name data_type;

ALTER COLUMN column_name data_type;

ALTER TABLE table_name ALTER COLUMN column_name data_type;

12 / 20

Which SQL statement is used to create a new table?

CREATE TABLE table_name (column1 data_type, column2 data_type);

INSERT TABLE table_name (column1 data_type, column2 data_type);

ADD TABLE table_name (column1 data_type, column2 data_type);

NEW TABLE table_name (column1 data_type, column2 data_type);

13 / 20

What does the ROUND() function do?

Rounds a number to a specified number of decimal places

Finds the absolute value of a number

Calculates the square root of a number

Finds the nearest integer

14 / 20

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

NUMBER(*)

COUNT(*)

SUM(*)

TOTAL(*)

15 / 20

What does the LEN() function do?

Returns the length of a string

Returns the length of a row

Returns the length of a column

Returns the length of a table

16 / 20

What does the SUM() function do?

Finds the highest value in a column

Finds the average value in a column

Adds up all the values in a column

Counts the number of rows in a table

17 / 20

What is the purpose of the WHERE clause in SQL Server?

To filter records based on a condition

To specify the table to be queried

To specify the columns to be displayed

To sort the results

18 / 20

What is the purpose of the HAVING clause?

To filter records before the GROUP BY clause

To filter records after the GROUP BY clause

To sort the results

To specify the columns to be displayed

19 / 20

How do you concatenate two strings in SQL Server?

string1 & string2

CONCAT(string1, string2)

string1 + string2

string1 || string2

20 / 20

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

SELECT * FROM table_name WHERE column_name IS NOT EMPTY;

SELECT * FROM table_name WHERE column_name IS NOT BLANK;

SELECT * FROM table_name WHERE column_name IS NOT ZERO;

SELECT * FROM table_name WHERE column_name IS NOT NULL;

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.