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

What is the correct syntax for inserting multiple rows into a table?

INSERT INTO table_name VALUES (value1, value2) AND (value3, value4);

INSERT INTO table_name (value1, value2), (value3, value4);

ADD INTO table_name VALUES (value1, value2), (value3, value4);

INSERT INTO table_name VALUES (value1, value2), (value3, value4);

2 / 20

How do you concatenate two strings in SQL Server?

string1 & string2

string1 + string2

string1 || string2

CONCAT(string1, string2)

3 / 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;

4 / 20

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

To specify the table to be queried

To filter records based on a condition

To specify the columns to be displayed

To sort the results

5 / 20

Which SQL function is used to return the current date and time?

CURRENT_DATE()

NOW()

GETDATE()

SYSDATE()

6 / 20

What does the TRUNCATE statement do?

Deletes the table structure

Deletes specific rows from a table

Deletes all rows from a table and can be rolled back

Deletes all rows from a table and cannot be rolled back

7 / 20

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

Calculates the average salary of all employees

Finds the lowest salary among employees

Calculates the total salary of all employees

Finds the highest salary among employees

8 / 20

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

SELECT * FROM table_name LIMIT 10;

SELECT * FROM table_name FETCH FIRST 10 ROWS ONLY;

SELECT FIRST 10 * FROM table_name;

SELECT TOP 10 * FROM table_name;

9 / 20

How do you delete a record from a table?

ERASE FROM table_name WHERE condition;

DELETE FROM table_name WHERE condition;

REMOVE FROM table_name WHERE condition;

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;

MODIFY COLUMN old_name TO new_name;

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

ALTER COLUMN old_name RENAME TO new_name;

RENAME COLUMN old_name TO new_name;

11 / 20

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

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

MIN()

LOWEST()

LEAST()

SMALLEST()

12 / 20

What does the COALESCE() function do?

Combines multiple columns into one

Returns the first non-null value in a list

Converts a value to a different data type

Splits a string into multiple parts

13 / 20

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

ALTER COLUMN column_name data_type;

CHANGE COLUMN column_name data_type;

MODIFY COLUMN column_name data_type;

ALTER TABLE table_name ALTER COLUMN column_name data_type;

14 / 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 ZERO;

SELECT * FROM table_name WHERE column_name IS NOT BLANK;

SELECT * FROM table_name WHERE column_name IS NOT NULL;

15 / 20

What does the IS NULL condition do?

Checks if a column has a value

Checks if a column is empty

Checks if a column has no value

Checks if a column is zero

16 / 20

What is the purpose of the HAVING clause?

To specify the columns to be displayed

To sort the results

To filter records after the GROUP BY clause

To filter records before the GROUP BY clause

17 / 20

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

SORT BY

GROUP BY

ORDER BY

ARRANGE BY

18 / 20

What does the LEN() function do?

Returns the length of a string

Returns the length of a row

Returns the length of a table

Returns the length of a column

19 / 20

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

SUM(*)

TOTAL(*)

COUNT(*)

NUMBER(*)

20 / 20

How do you rename a table in SQL Server?

EXEC sp_rename ‘old_name’, ‘new_name’;

MODIFY TABLE old_name TO new_name;

RENAME TABLE old_name TO new_name;

ALTER TABLE old_name RENAME TO new_name;

Your score is

The average score is 45%

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.