SQL | Structured Query Language Test

The result of a SQL SELECT statement is a ______.

Which file type is used for database backup?

Which is the subset of SQL command used to manipulate Database structures, including tables?

What is the meaning of a Database?

Which of the following is the original purpose of SQL?

Can you validate the statement?

"ORDER BY" can only be used by WHERE Clause.

True or False?

Which one is not used in SQL?

Find all the cities whose humidity is 89

Which of the following query is correct for selecting the name of the staff from ''staffinfo'' table where salary is 10000 or 25000?

Select two options which do not belong to the Purpose of Delete

Analyze the following Query and Mark the answer whether it's the correct query or not ?

select deptName

from Employee

having avg (salary)

group by deptName

where sex = 'M'

Which SQL keyword is used to sort the result-set?

Select ID, GPA from student grades order by GPA ____________.

In order to give only 10 ranks, on the whole, we should use.

What is the significance of “ORDER BY” in the following MySQL statement?

SELECT emp_id, fname, lname

FROM person

ORDER BY emp_id;

Find the name of these cities with temperature and condition whose condition is neither sunny nor cloudy

What can be the condition in the "WHERE" clause in a SQL query?

Syntax for create a views is _______

How to delete the Customer name of Alfreds Futterkiste (CustomerID is 1) from the Customers table?

Analyse the following Query and Mark the answer whether it's the correct query or not?

SELECT Name, Age, Firstname, Lastname

FROM EMPLOYEE

GROUP BY NAME, SALARY;

If emp_id contains the following set {-1, -2, 2, 3, -3, 1}, what will be the output on the execution of the following MySQL statement?

SELECT emp_id

FROM person

ORDER BY emp_id;

You need to find out the names of all employees who belong to the same department as the employee 'Jessica Butcher' who is in department 100 and has an employee ID 40. Which of the following queries will be correct?

The ___ clause allows us to select only those rows in the result relation of the clause that satisfy a specified predicate.

We can use one table to create another table using the below query. True or False ?

CREATE TABLE TestTable AS

SELECT customername, contactname

FROM customers;

The SQL WHERE clause used for

What is the significance of the statement “GROUP BY d.name” in the following MySQL statement?

SELECT d.name, COUNT (emp_id) emp_no

FROM department d INNER JOIN Employee e

ON d.dept_id=e.emp_id

GROUP BY d.name

What is the significance of the statement of the below query?

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id

You can delete a view with _____________ Command.

With SQL, how do you select all the records from a table named "Persons" where the value of the column "Firstname" ends with an ''a''?

What is the significance of the statement “HAVING COUNT (emp_id)>2” in the following MySQL statement?

SELECT d.name, COUNT (emp_id) emp_no

FROM department d INNER JOIN Employee e

ON d.dept_id=e.emp_id

GROUP BY d.name

HAVING COUNT (emp_id)>2

Which of the SQL statement is correct?

A subquery in an SQL SELECT statement is enclosed in

Can you validate the statement?

A subquery can be used anywhere an expression is allowed.

True or False?

Which of the following is true about sub-queries?

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

Which of the following statement(s) is TRUE regarding subqueries?

A ______ index is created based on only one table column.

A Key which is a set of one or more columns that can identify a record uniquely is called?

Which key accepts multiple NULL values?

Can you validate the statement?

A column with a Primary key has a Null value.

True or False?

Which of the following is correct DROP INDEX Command?

Below image depicts:

Where are Joins used?

Analyze the following tables and output and choose the correct query to achieve the output.

Can you validate the statement?

Alias is used in Joins.

True or False?

In the absence of WHERE condition this JOIN will function like a _______.

Evaluate this SQL statement:

SELECT employee_id, e.department_id, department_name, salary

FROM employees e, departments d

WHERE e.department_id = d.department_id;

Which SQL statement is equivalent to the above SQL statement?

Analyze the following tables and output and choose the correct query to achieve the output.

Statement: Join for each row of one table to every row of another table.

Which Join?

What is the syntax for joining two tables? Pick Two

Choose the query that matches the above image.

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(*) from Salesemployee

WHERE Gender = 'Male';

Which SQL keyword is used to retrieve the highest value?

Which of the following do you need to consider when you make a table in SQL?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(Salary) from Salesemployee

where name Like 'S%';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(*) from Salesemployee

WHERE Salary >=500 and Dept = 'Sales';

The _____ aggregation operation adds up all the values of the attribute

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Max(Salary) from Salesemployee

WHERE Gender = 'Male';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(Salary) from Salesemployee

where name Like 'T%';

Use below table (Salesemployee) and answer the following question

What is the output of following query?

SELECT MIN(Salary) from Salesemployee

WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT AVG(Salary) from Salesemployee

where Dept = ' HR';

STRUCTURED QUERY LANGUAGE TEST

The result of a SQL SELECT statement is a ______.

Which file type is used for database backup?

Which is the subset of SQL command used to manipulate Database structures, including tables?

What is the meaning of a Database?

Which of the following is the original purpose of SQL?

Can you validate the statement? "ORDER BY" can only be used by WHERE Clause. True or False?

Which one is not used in SQL?

Find all the cities whose humidity is 89

Which of the following query is correct for selecting the name of the staff from ''staffinfo'' table where salary is 10000 or 25000?

Select two options which do not belong to the Purpose of Delete

Analyze the following Query and Mark the answer whether it's the correct query or not ? select deptName from Employee having avg (salary) group by deptName where sex = 'M'

Which SQL keyword is used to sort the result-set?

Select ID, GPA from student grades order by GPA ____________. In order to give only 10 ranks, on the whole, we should use.

What is the significance of “ORDER BY” in the following MySQL statement? SELECT emp_id, fname, lname FROM person ORDER BY emp_id;

Find the name of these cities with temperature and condition whose condition is neither sunny nor cloudy

What can be the condition in the "WHERE" clause in a SQL query?

Syntax for create a views is _______

How to delete the Customer name of Alfreds Futterkiste (CustomerID is 1) from the Customers table?

Analyse the following Query and Mark the answer whether it's the correct query or not? SELECT Name, Age, Firstname, Lastname FROM EMPLOYEE GROUP BY NAME, SALARY;

If emp_id contains the following set {-1, -2, 2, 3, -3, 1}, what will be the output on the execution of the following MySQL statement? SELECT emp_id FROM person ORDER BY emp_id;

You need to find out the names of all employees who belong to the same department as the employee 'Jessica Butcher' who is in department 100 and has an employee ID 40. Which of the following queries will be correct?

The _______ clause allows us to select only those rows in the result relation of the ____ clause that satisfy a specified predicate.

We can use one table to create another table using the below query. True or False ? CREATE TABLE TestTable AS SELECT customername, contactname FROM customers;

The SQL WHERE clause used for

What is the significance of the statement “GROUP BY d.name” in the following MySQL statement? SELECT d.name, COUNT (emp_id) emp_no FROM department d INNER JOIN Employee e ON d.dept_id=e.emp_id GROUP BY d.name

What is the significance of the statement of the below query? SELECT branch_name, COUNT (DISTINCT customer_name) FROM depositor, account WHERE depositor.account_number = account.account_number GROUP BY branch_id

You can delete a view with _____________ Command.

With SQL, how do you select all the records from a table named "Persons" where the value of the column "Firstname" ends with an ''a''?

What is the significance of the statement “HAVING COUNT (emp_id)>2” in the following MySQL statement? SELECT d.name, COUNT (emp_id) emp_no FROM department d INNER JOIN Employee e ON d.dept_id=e.emp_id GROUP BY d.name HAVING COUNT (emp_id)>2

Which of the SQL statement is correct?

A subquery in an SQL SELECT statement is enclosed in

Can you validate the statement? A subquery can be used anywhere an expression is allowed. True or False?

Which of the following is true about sub-queries?

Can you validate the statement? An ORDER BY can be used in a subquery. True or False?

Which of the following statement(s) is TRUE regarding subqueries?

A ______ index is created based on only one table column.

A Key which is a set of one or more columns that can identify a record uniquely is called?

Which key accepts multiple NULL values?

Can you validate the statement? A column with a Primary key has a Null value. True or False?

Which of the following is correct DROP INDEX Command?

Below image depicts:

Where are Joins used?

Analyze the following tables and output and choose the correct query to achieve the output.

Can you validate the statement? Alias is used in Joins. True or False?

In the absence of WHERE condition this JOIN will function like a _______.

Evaluate this SQL statement: SELECT employee_id, e.department_id, department_name, salary FROM employees e, departments d WHERE e.department_id = d.department_id; Which SQL statement is equivalent to the above SQL statement?

Analyze the following tables and output and choose the correct query to achieve the output.

Statement: Join for each row of one table to every row of another table. Which Join?

What is the syntax for joining two tables? Pick Two

Choose the query that matches the above image.

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT Count(*) from Salesemployee WHERE Gender = 'Male';

Which SQL keyword is used to retrieve the highest value?

Which of the following do you need to consider when you make a table in SQL?

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT Count(Salary) from Salesemployee where name Like 'S%';

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT Count(*) from Salesemployee WHERE Salary >=500 and Dept = 'Sales';

The _____ aggregation operation adds up all the values of the attribute

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT Max(Salary) from Salesemployee WHERE Gender = 'Male';

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT Count(Salary) from Salesemployee where name Like 'T%';

Use below table (Salesemployee) and answer the following question What is the output of following query? SELECT MIN(Salary) from Salesemployee WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT AVG(Salary) from Salesemployee where Dept = ' HR';

Assessment complete! Thank you for you time. We are redirecting you to the result page, Please click on 'SUBMIT'

Can you validate the statement?

"ORDER BY" can only be used by WHERE Clause.

True or False?

Analyze the following Query and Mark the answer whether it's the correct query or not ?

select deptName

from Employee

having avg (salary)

group by deptName

where sex = 'M'

Select ID, GPA from student grades order by GPA ____________.

In order to give only 10 ranks, on the whole, we should use.

What is the significance of “ORDER BY” in the following MySQL statement?

SELECT emp_id, fname, lname

FROM person

ORDER BY emp_id;

Analyse the following Query and Mark the answer whether it's the correct query or not?

SELECT Name, Age, Firstname, Lastname

FROM EMPLOYEE

GROUP BY NAME, SALARY;

If emp_id contains the following set {-1, -2, 2, 3, -3, 1}, what will be the output on the execution of the following MySQL statement?

SELECT emp_id

FROM person

ORDER BY emp_id;

The ___ clause allows us to select only those rows in the result relation of the clause that satisfy a specified predicate.

We can use one table to create another table using the below query. True or False ?

CREATE TABLE TestTable AS

SELECT customername, contactname

FROM customers;

What is the significance of the statement “GROUP BY d.name” in the following MySQL statement?

SELECT d.name, COUNT (emp_id) emp_no

FROM department d INNER JOIN Employee e

ON d.dept_id=e.emp_id

GROUP BY d.name

What is the significance of the statement of the below query?

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id

What is the significance of the statement “HAVING COUNT (emp_id)>2” in the following MySQL statement?

SELECT d.name, COUNT (emp_id) emp_no

FROM department d INNER JOIN Employee e

ON d.dept_id=e.emp_id

GROUP BY d.name

HAVING COUNT (emp_id)>2

Can you validate the statement?

A subquery can be used anywhere an expression is allowed.

True or False?

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

Can you validate the statement?

A column with a Primary key has a Null value.

True or False?

Can you validate the statement?

Alias is used in Joins.

True or False?

Evaluate this SQL statement:

SELECT employee_id, e.department_id, department_name, salary

FROM employees e, departments d

WHERE e.department_id = d.department_id;

Which SQL statement is equivalent to the above SQL statement?

Statement: Join for each row of one table to every row of another table.

Which Join?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(*) from Salesemployee

WHERE Gender = 'Male';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(Salary) from Salesemployee

where name Like 'S%';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(*) from Salesemployee

WHERE Salary >=500 and Dept = 'Sales';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Max(Salary) from Salesemployee

WHERE Gender = 'Male';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(Salary) from Salesemployee

where name Like 'T%';

Use below table (Salesemployee) and answer the following question

What is the output of following query?

SELECT MIN(Salary) from Salesemployee

WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT AVG(Salary) from Salesemployee

where Dept = ' HR';

Assessment complete! Thank you for you time.
We are redirecting you to the result page, Please click on 'SUBMIT'

1.

File
Report
Table
Form

2.

BAK
TXT
XML
XLSX

3.

Data Definition Language
Data Manipulation Language
Both of above
None of the above

4.

Collection of structured information
Database stores SQL Query
Database is a kind of view table
None of the above

5.

To specify the syntax and semantics of SQL data definition language
To specify the syntax and semantics of SQL manipulation language
To define the data structures
All of the above

6.

TRUE
FALSE

7.

Create Table
Create Index
Create Unique Index
Create Table Column

8.

Select city where humidity = 89;
Select city from weather where humidity = 89;
Select humidity = 89 from weather;
Select city from Weather;

9.

Select name from staffinfo where salary BETWEEN 10000 AND 25000;
Select name from staffinfo where salary IN 10000 AND 25000;
Both A and B
None of the above

10.

It is used to delete a table.
You cannot rollback data.
It is a DML command.
It is used to delete a row in a table.

11.

TRUE
FALSE

12.

ORDER BY
SORT
ORDER
SORT BY

13.

Limit 10
Up to 10
Only 10
Max 10

14.

Data of lname will be sorted
Data of emp_id will be sorted in descending order
Data of emp_id will be sorted in ascending order
All of the mentioned

15.

Select city, temperature, condition FROM weather Where condition NOT IN ('sunny', 'cloudy');
Select city, temperature, condition FROM weather Where condition NOT between ('sunny', 'cloudy');
Select city, temperature, condition FROM weather Where condition IN ('sunny', 'cloudy');
Select city, temperature, condition FROM weather Where condition between ('sunny', 'cloudy');

16.

Condition that is to be met for the rows to be returned from result.
Boolean Condition only
Text condition only
None of the above

17.

CREATE VIEW View_name AS SELECT
CREATE VIEW View_name AS UPDATE
CREATE NEW VIEW View_name
CREATE VIEW View_name AS UPDATE

18.

DELETE FROM Customers where CustomerName = Alfreds Futterkiste AND CustomerID = 1
Delete Customers Where ContactName = 'Alfred Schmidt' WHERE CustomerID = 1;
Delete Customers Where ContactName = 'Alfred Schmidt'
Delete Customers SET CustomerName =

19.

TRUE
FALSE

20.

{-3, -2, -1, 1, 2, 3}
{-1, 1, -2, 2, -3, 3}
{1, 2, 3, -1, -2, -3}
None of the mentioned

21.

SELECT first_name, last_name FROM employees WHERE last_name = 'Butcher' And first_name = 'Jessica';
SELECT first_name, last_name FROM employees WHERE department =100;
SELECT first_name, last_name FROM employees WHERE department = (SELECT department FROM employees WHERE first_name = 'Jessica' AND last_name = 'Butcher');
SELECT first_name, last_name FROM employees WHERE department = (SELECT department FROM employees WHERE first_name = 'Jessica' AND last_name = 'Butcher' AND department = 100 AND employee_id = 40);

22.

Where, from
From, select
Select, from
From, where

23.

TRUE
FALSE

24.

limits the column data that are returned.
limits the row data are returned.
Both A and B are correct.
Neither A nor B are correct.

25.

Aggregation of the field “name” of both table
Aggregation of the field “name” of table “department”
Sorting of the field “name”
None of the mentioned

26.

The query is syntactically correct but gives the wrong answer
The query is syntactically wrong
The query is syntactically correct and gives the correct answer
The query contains one or more wrongly named clauses.

27.

DROP VIEW
DELETE VIEW
REMOVE VIEW
TRUNCATE VIEW

28.

Select * from Persons where Firstname='a'
Select * from Persons where Firstname Like 'a%'
Select * from Persons where Firstname like '%a'
Select * from Persons where Firstname='%a%'

29.

Filter out all rows whose total emp_id below 2
Delete the rows whose total emp_id>2
Filter out or select all rows whose total emp_id below 2
None of the mentioned

30.

Select Username AND Password FROM Users;
Select Username, Password FROM Users;
Select Username, Password Where Username = 'user1';
None of these

31.

Parenthesis -- (…).
Brackets -- […].
Capital Letters.
Braces--{…}.

32.

TRUE
FALSE

33.

They execute after the main query executes
They execute in parallel to the main query
The user can execute the main query and then, if wanted, execute the sub-query
They execute before the main query executes

34.

TRUE
FALSE

35.

Outer query and inner query can get data from different tables
Outer query and inner query must get data from the same table

36.

Implicit
Unique
single-column
Composite

37.

Natural key
Primary key
Not Null key
Alternate key

38.

Foreign Key
Unique Key
Primary Key
None of the above

39.

TRUE
FALSE

40.

DROP INDEX table_name;
DROP INDEX index_name;
DROP INDEX index_name or table_name;
DELETE INDEX index_name;

41.

SELF JOIN
INNER JOIN
FULL OUTER JOIN
None of the above

42.

To combine records from two or more tables in a database
Joins used in Data Definition Language
Joins used in aggregate function
SQL combines the result-set of two or more SELECT statements.

43.

SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders INNER JOIN Customers ON Orders.CustomerID=Customers.CustomerID;
SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders LEFT OUTER JOIN Customers ON Orders.CustomerID=Customers.CustomerID;
SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders RIGHT OUTER JOIN Customers ON Orders.CustomerID=Customers.CustomerID;
SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders FULLY OUTER Customers ON Orders.CustomerID=Customers.CustomerID;

44.

TRUE
FALSE

45.

Inner
Cartesian
Outer
Left

46.

SELECT employee_id, department_id, department_name, salary FROM employees WHERE department_id IN (SELECT department_id FROM departments);
SELECT employee_id, department_id, department_name, salary FROM employees NATURAL JOIN departments;
SELECT employee_id, d.department_id, department_name, salary FROM employees e JOIN departments d ON e.department_id = d.department_id;
SELECT employee_id, department_id, department_name, salary FROM employees JOIN departments USING (e.department_id, d.department_id);

47.

SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders LEFT OUTER JOIN Customers ON Orders.CustomerID=Customers.CustomerID;
SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders INNER JOIN Customers ON Orders.CustomerID=Customers.CustomerID;
SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders RIGHT OUTER JOIN Customers ON Orders.CustomerID=Customers.CustomerID;
SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders ADD Customers ON Orders.CustomerID=Customers.CustomerID;

48.

Inner
Cartesian
Outer
Left

49.

SELECT Column Names FROM Table 1 JOIN Table 2 ON Condition JOIN Table 3 ON Condition
SELECT * FROM Table 1 JOIN Table 2 ON Condition JOIN Table 3 ON Condition
SELECT Column from Table 1 Join Table 2, Table 3 ON Condition
SELECT Column from Table 1 AND SELECT Column from Table 2

50.

Select [List] from [Table A] A inner join [Table B] B on A.value=B.value
Select [List] from [Table A] A full outer join [Table B] B on A.value=B.value where A.value is null or B.value is null
Select [List] from [Table A] A right join [Table B] B on A.value=B.value where A.value is null
Select [List] from [Table A] A full outer join [Table B] B on A.value=B.value

51.

8
4
5
3

52.

MOST
TOP
MAX
UPPER

53.

Data types
Primary keys
Default values
All of the above

54.

3
5
8
4

55.

8
6
3
4

56.

add
avg
max
sum

57.

1000
1500
500
200

58.

3
5
1
4

59.

200
700
2000
2500

60.

1067
500
2500
1064

SELECT Name, Age, Firstname, Lastname
FROM EMPLOYEE
GROUP BY NAME, SALARY;

SELECT d.name, COUNT (emp_id) emp_no
FROM department d INNER JOIN Employee e
ON d.dept_id=e.emp_id
GROUP BY d.name

SELECT employee_id, e.department_id, department_name, salary
FROM employees e, departments d
WHERE e.department_id = d.department_id;

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT Count(*) from Salesemployee
WHERE Gender = 'Male';

SELECT Count(Salary) from Salesemployee
where name Like 'S%';

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT Max(Salary) from Salesemployee
WHERE Gender = 'Male';

SELECT Count(Salary) from Salesemployee
where name Like 'T%';

Use below table (Salesemployee) and answer the following question
What is the output of following query?
SELECT MIN(Salary) from Salesemployee
WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT AVG(Salary) from Salesemployee
where Dept = ' HR';

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id