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

How do you concatenate two strings in SQL Server?

string1 || string2

CONCAT(string1, string2)

string1 & string2

string1 + string2

2 / 20

What does the ROUND() function do?

Calculates the square root of a number

Finds the nearest integer

Rounds a number to a specified number of decimal places

Finds the absolute value of a number

3 / 20

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

CURRENT_DATE()

NOW()

SYSDATE()

GETDATE()

4 / 20

What does the IS NULL condition do?

Checks if a column has no value

Checks if a column is empty

Checks if a column has a value

Checks if a column is zero

5 / 20

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

NUMBER(*)

TOTAL(*)

COUNT(*)

SUM(*)

6 / 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’;

7 / 20

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

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

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

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

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

8 / 20

How do you remove a column from a table?

REMOVE COLUMN column_name;

DELETE COLUMN column_name;

ALTER TABLE table_name DROP COLUMN column_name;

DROP COLUMN column_name;

9 / 20

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

SELECT * FROM table_name LIMIT 10;

SELECT FIRST 10 * FROM table_name;

SELECT TOP 10 * FROM table_name;

SELECT * FROM table_name FETCH FIRST 10 ROWS ONLY;

10 / 20

Which SQL statement is used to create a new table?

NEW 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);

CREATE TABLE table_name (column1 data_type, column2 data_type);

11 / 20

How do you rename a table in SQL Server?

MODIFY TABLE old_name TO new_name;

EXEC sp_rename ‘old_name’, ‘new_name’;

ALTER TABLE old_name RENAME TO new_name;

RENAME TABLE old_name TO new_name;

12 / 20

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

INSERT NEW

ADD INTO

INSERT INTO

ADD NEW

13 / 20

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

Finds the lowest salary among employees

Calculates the average salary of all employees

Finds the highest salary among employees

Calculates the total salary of all employees

14 / 20

What does the TRUNCATE statement do?

Deletes all rows from a table and can be rolled back

Deletes the table structure

Deletes all rows from a table and cannot be rolled back

Deletes specific rows from a table

15 / 20

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

ORDER BY

GROUP BY

SORT BY

ARRANGE BY

16 / 20

How do you delete a record from a table?

DELETE FROM table_name WHERE condition;

REMOVE FROM table_name WHERE condition;

ERASE FROM table_name WHERE condition;

DELETE FROM table_name WHERE condition;

17 / 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 ZERO;

SELECT * FROM table_name WHERE column_name IS NOT NULL;

18 / 20

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

ALTER TABLE table_name ADD column_name data_type;

MODIFY TABLE table_name ADD column_name data_type;

ADD COLUMN column_name data_type;

INSERT COLUMN column_name data_type;

19 / 20

What does the LEN() function do?

Returns the length of a row

Returns the length of a string

Returns the length of a table

Returns the length of a column

20 / 20

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

MODIFY COLUMN column_name data_type;

ALTER TABLE table_name ALTER COLUMN column_name data_type;

CHANGE COLUMN column_name data_type;

ALTER COLUMN column_name data_type;

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.