SQL | Structured Query Language Test

Which one is a non-relational database?

To Create a new database __________ Command is used

The result of a SQL SELECT statement is a ______.

What does a DML Stand for?

Which file type is used for database backup?

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

SELECT emp_id, fname, lname

FROM person

ORDER BY emp_id;

You can delete a view with _____________ Command.

Which SQL Query is used for updating the ContactName in the Customers table?

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

Which syntax is used for Drop Index (idx_pname) from the Person table in MYSQL?

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

Find the names of the countries whose condition is sunny

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

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

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

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

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

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

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, name, dept name, salary * 1.1 where instructor;

The query given below will not give an error. Which one of the following has to be replaced to get the desired output?

Identify the average salary of the jobs 'MANAGER' and 'ANALYST'. Display job, average salary if the identified average salary is more than 1500.

The HAVING clause does which of the following?

With SQL, how can you return all the records from a table named "Persons" sorted descending by "FirstName"?

Can you validate the statement?

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

True or False?

Syntax for create a views is _______

Which one is not used in SQL?

Which of the SQL statement is correct?

If you don't specify ASC or DESC after a SQL ORDER BY clause, the following is used by default

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

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

A subquery in an SQL SELECT statement is enclosed in

Which of the following clause is mandatorily used in a sub-query?

Which of the following operators cannot be used in a sub-query?

Where subqueries can not be used?

Student (ID, Name, Dept_name, Total_credit)

In this above query which attribute form the Primary Key?

Which of the following is correct DROP INDEX Command?

Can you validate the statement?

A column with a Primary key has a Null value.

True or False?

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

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

Below image depicts:

What is the syntax for joining two tables? Pick Two

Where are Joins used?

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?

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

In which two cases would you use an outer join? (Choose two.)

Which type of join is not desirable for retrieval?

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

List all orders, showing order number, customer name and credit limit of a customer.

Orders Table:

Order_Number, Customer, Product_Amount

Customers Table:

Customer_Number, Customer_Name, Credit_Limit

Which of the below query satisfy the above question?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MIN(Salary) from Salesemployee

WHERE Employee_ID % 2 != 0 ;

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 MIN(Salary) from Salesemployee

WHERE Gender = 'Female';

Which SQL keyword is used to retrieve the highest value?

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 MAX(Salary) from Salesemployee

WHERE Employee_ID % 2 = 0 ;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT SUM(Salary) from Salesemployee ;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MIN(Salary) from Salesemployee

WHERE Employee_ID % 2 <> 0 ;

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';

“COUNT” keyword belongs to which categories in MySQL?

STRUCTURED QUERY LANGUAGE TEST

Which one is a non-relational database?

To Create a new database __________ Command is used

The result of a SQL SELECT statement is a ______.

What does a DML Stand for?

Which file type is used for database backup?

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

You can delete a view with _____________ Command.

Which SQL Query is used for updating the ContactName in the Customers table?

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

Which syntax is used for Drop Index (idx_pname) from the Person table in MYSQL?

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

Find the names of the countries whose condition is sunny

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

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

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

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

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

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, name, dept name, salary * 1.1 where instructor; The query given below will not give an error. Which one of the following has to be replaced to get the desired output?

Identify the average salary of the jobs 'MANAGER' and 'ANALYST'. Display job, average salary if the identified average salary is more than 1500.

The HAVING clause does which of the following?

With SQL, how can you return all the records from a table named "Persons" sorted descending by "FirstName"?

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

Syntax for create a views is _______

Which one is not used in SQL?

Which of the SQL statement is correct?

If you don't specify ASC or DESC after a SQL ORDER BY clause, the following is used by default

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

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

A subquery in an SQL SELECT statement is enclosed in

Which of the following clause is mandatorily used in a sub-query?

Which of the following operators cannot be used in a sub-query?

Where subqueries can not be used?

Student (ID, Name, Dept_name, Total_credit) In this above query which attribute form the Primary Key?

Which of the following is correct DROP INDEX Command?

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

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

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

Below image depicts:

What is the syntax for joining two tables? Pick Two

Where are Joins used?

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?

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

In which two cases would you use an outer join? (Choose two.)

Which type of join is not desirable for retrieval?

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

List all orders, showing order number, customer name and credit limit of a customer. Orders Table: Order_Number, Customer, Product_Amount Customers Table: Customer_Number, Customer_Name, Credit_Limit Which of the below query satisfy the above question?

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT MIN(Salary) from Salesemployee WHERE Employee_ID % 2 != 0 ;

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 MIN(Salary) from Salesemployee WHERE Gender = 'Female';

Which SQL keyword is used to retrieve the highest value?

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 MAX(Salary) from Salesemployee WHERE Employee_ID % 2 = 0 ;

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT SUM(Salary) from Salesemployee ;

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT MIN(Salary) from Salesemployee WHERE Employee_ID % 2 <> 0 ;

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';

“COUNT” keyword belongs to which categories in MySQL?

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

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

SELECT emp_id, fname, lname

FROM person

ORDER BY emp_id;

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

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 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

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, name, dept name, salary * 1.1 where instructor;

The query given below will not give an error. Which one of the following has to be replaced to get the desired output?

Can you validate the statement?

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

True or False?

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;

Student (ID, Name, Dept_name, Total_credit)

In this above query which attribute form the Primary Key?

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?

List all orders, showing order number, customer name and credit limit of a customer.

Orders Table:

Order_Number, Customer, Product_Amount

Customers Table:

Customer_Number, Customer_Name, Credit_Limit

Which of the below query satisfy the above question?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MIN(Salary) from Salesemployee

WHERE Employee_ID % 2 != 0 ;

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 MIN(Salary) from Salesemployee

WHERE Gender = 'Female';

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 MAX(Salary) from Salesemployee

WHERE Employee_ID % 2 = 0 ;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT SUM(Salary) from Salesemployee ;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MIN(Salary) from Salesemployee

WHERE Employee_ID % 2 <> 0 ;

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';

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

1.

Postgre
MySQL
MariaDB
MongoDB

2.

New database_name
Create database database_name
First Database database_name
New database database_name

3.

File
Report
Table
Form

4.

Different Mode Level
Data Model Language
Data Mode Lane
Data Manipulation Language

5.

BAK
TXT
XML
XLSX

6.

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

7.

DROP VIEW
DELETE VIEW
REMOVE VIEW
TRUNCATE VIEW

8.

FROM Customers UPDATE ContactName = 'Adam Smith' WHERE CustomerID = 111;
Select Customers Update ContactName = 'Adam Smith' WHERE CustomerID = 111;
UPDATE ContactName = 'Adam Smith' from Customer WHERE CustomerID = 111;
UPDATE Customers SET ContactName = 'Adam Smith' WHERE CustomerID = 111;

9.

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.

10.

DROP INDEX idx_pname;
DROP INDEX index_name from Person;
ALTER TABLE Person DROP INDEX idx_pname;
Cannot drop Index from table

11.

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

12.

Select country from location where condition = 'sunny';
Select country from location where city IN (Select city from weather WHERE condition = 'sunny');
Select country from location where city NOT IN (SELECT city FROM weather WHERE condition = 'sunny');
SELECT country from location where city UNION (Select city from weather WHERE condition = 'sunny');

13.

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

14.

Limit 10
Up to 10
Only 10
Max 10

15.

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

16.

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.

17.

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

18.

ORDER BY
SORT
ORDER
SORT BY

19.

TRUE
FALSE

20.

Salary*1.1
ID
Where
Instructor

21.

select job, avg(sal) "Average Salary" from emp where job in('MANAGER','ANALYST') group by job having avg(sal)>=1500;
select job, avg(sal) "Average Salary" from emp where job in('MANAGER','ANALYST') group by job having avg(sal)>1500;
select job, avg(sal) "Average Salary" from emp where job in('MANAGER') group by job having avg(sal)>1500;
select job, sum(sal) "Average Salary" from emp where job in('MANAGER','ANALYST') order by job having avg(sal)>1500;

22.

Acts like a WHERE clause but is used for groups rather than rows.
Acts like a WHERE clause but is used for rows rather than columns.
Acts like a WHERE clause but is used for columns rather than groups.
Acts EXACTLY like a WHERE clause.

23.

Select * from Persons SORT BY "FirstName" DESC;
Select * from Persons SORT "FirstName" DESC;
Select * from Persons ORDER BY "FirstName" DESC;
Select * from Persons ORDER "FirstName" DESC;

24.

TRUE
FALSE

25.

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

26.

Create Table
Create Index
Create Unique Index
Create Table Column

27.

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

28.

ASC
DESC
Order by Randomly
No output

29.

TRUE
FALSE

30.

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.

31.

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

32.

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

33.

SELECT
WHERE
ORDER BY
GROUP BY

34.

AND, OR
< , > >, <>

35.

Field names in the SELECT statement
The WHERE clause only in the SELECT statement
The WHERE clause in SELECT as well as all DML statements
The FROM clause in the SELECT statement

36.

Name
Dept
Total_Credit
ID

37.

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

38.

TRUE
FALSE

39.

Data types
Primary keys
Default values
All of the above

40.

Natural key
Primary key
Not Null key
Alternate key

41.

SELF JOIN
INNER JOIN
FULL OUTER JOIN
None of the above

42.

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

43.

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.

44.

TRUE
FALSE

45.

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);

46.

Inner
Cartesian
Outer
Left

47.

The tables being joined have NOT NULL columns.
The tables being joined have both matched and unmatched data.
The columns being joined have NULL values.
The tables being joined have only unmatched data.

48.

Inner
Left
Right
Outer

49.

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;

50.

Select Order_Numer, Customer_Name, Credit_Limit from Customers, Orders where Customer = Customer_Number;
Select Order_Numer, Customer_Name, Credit_Limit from Customers INNER JOIN Orders ON Customers.Customer_Number = Orders.Customer;;
Both
None

51.

50
500
200
100

52.

1000
1500
500
200

53.

200
700
2000
2500

54.

MOST
TOP
MAX
UPPER

55.

8
4
5
3

56.

5400
9400
2000
2500

57.

5000
2500
4500
9400

58.

200
500
700
100

59.

8
6
3
4

60.

Aggregate functions
Operators
Clauses
All of the mentioned

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;

Customers Table:
Customer_Number, Customer_Name, Credit_Limit

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT MIN(Salary) from Salesemployee
WHERE Employee_ID % 2 != 0 ;

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 MIN(Salary) from Salesemployee
WHERE Gender = 'Female';

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 SUM(Salary) from Salesemployee ;

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id