SQL | Structured Query Language Test

Which file type is used for database backup?

What is the main language of Transact-SQL?

Which of the following is the original purpose of SQL?

What is the SQL query used to retrieve all the data from the customer table?

To Create a new database __________ Command is used

Select ________ dept_name from instructor;

Here which of the following displays the unique values of the column?

Find all the cities whose humidity is 89

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

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 SQL WHERE clause used for

You can delete a view with _____________ Command.

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

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

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

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

Find the names of the countries whose condition is sunny

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

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;

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'

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

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

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

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

What is the meaning of the “ORDER BY” clause in MySQL?

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;

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

Which of the SQL statement is correct?

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

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

Which command is used to change the definition of a table in SQL ?

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

Can you validate the statement?

A subquery can be used anywhere an expression is allowed.

True or False?

A subquery in an SQL SELECT statement is enclosed in

Which of the following is true about sub-queries?

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

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

Which of the following is correct DROP INDEX Command?

Can you validate the statement?

A column with a Unique key has duplicate values.

True or False?

Which key accepts multiple NULL values?

How many types of indexes are there in the SQL server?

What is the function of Full Outer Join in SQL?

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?

Below image depicts:

Can you validate the statement?

Alias is used in Joins.

True or False?

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

Choose the correct query for the below scenario.

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?

What are the joins available in SQL?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT SUM(Salary) from Salesemployee

where Name = 'Tom';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT AVG(Salary) from Salesemployee

WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question

What is the output of the following query?

SELECT SUM(Salary) 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 Gender = 'Male';

The SQL Statement

SELECT ROUND(45.926, -1) FROM DUAL;

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

Which of the following set of operations is a valid set of Aggregate operations in SQL?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(*) from Salesemployee

WHERE Salary >500;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MAX(Salary) from Salesemployee

WHERE Salary >=2500 and Dept = 'Sales' ;

Which SQL keyword is used to retrieve a maximum value?

STRUCTURED QUERY LANGUAGE TEST

Which file type is used for database backup?

What is the main language of Transact-SQL?

Which of the following is the original purpose of SQL?

What is the SQL query used to retrieve all the data from the customer table?

To Create a new database __________ Command is used

Select ________ dept_name from instructor; Here which of the following displays the unique values of the column?

Find all the cities whose humidity is 89

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

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 SQL WHERE clause used for

You can delete a view with _____________ Command.

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

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

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

Find the names of the countries whose condition is sunny

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

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;

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'

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

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

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

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

What is the meaning of the “ORDER BY” clause in MySQL?

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;

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

Which of the SQL statement is correct?

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

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

Which command is used to change the definition of a table in SQL ?

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

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

A subquery in an SQL SELECT statement is enclosed in

Which of the following is true about sub-queries?

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

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

Which of the following is correct DROP INDEX Command?

Can you validate the statement? A column with a Unique key has duplicate values. True or False?

Which key accepts multiple NULL values?

How many types of indexes are there in the SQL server?

What is the function of Full Outer Join in SQL?

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?

Below image depicts:

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

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

Choose the correct query for the below scenario.

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?

What are the joins available in SQL?

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

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

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

The SQL Statement SELECT ROUND(45.926, -1) FROM DUAL;

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

Which of the following set of operations is a valid set of Aggregate operations in SQL?

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

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT MAX(Salary) from Salesemployee WHERE Salary >=2500 and Dept = 'Sales' ;

Which SQL keyword is used to retrieve a maximum value?

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

Select ________ dept_name from instructor;

Here which of the following displays the unique values of the column?

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.

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;

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'

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

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

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;

Can you validate the statement?

A subquery can be used anywhere an expression is allowed.

True or False?

Can you validate the statement?

A column with a Unique key has duplicate values.

True or False?

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?

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 SUM(Salary) from Salesemployee

where Name = 'Tom';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT AVG(Salary) from Salesemployee

WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question

What is the output of the following query?

SELECT SUM(Salary) 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 Gender = 'Male';

The SQL Statement

SELECT ROUND(45.926, -1) FROM DUAL;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(*) from Salesemployee

WHERE Salary >500;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MAX(Salary) from Salesemployee

WHERE Salary >=2500 and Dept = 'Sales' ;

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

1.

BAK
TXT
XML
XLSX

2.

DDL
DML
DCL
None of the above

3.

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

4.

SELECT COLUMN FROM Customers;
SELECT All FROM Customers;
SELECT * FROM Customers;
SELECT All COLUMN FROM Customers;

5.

New database_name
Create database database_name
First Database database_name
New database database_name

6.

All
From
Distinct
Name

7.

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

8.

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

9.

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);

10.

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.

11.

DROP VIEW
DELETE VIEW
REMOVE VIEW
TRUNCATE VIEW

12.

Limit 10
Up to 10
Only 10
Max 10

13.

ASC
DESC
Order by Randomly
No output

14.

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

15.

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');

16.

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

17.

TRUE
FALSE

18.

TRUE
FALSE

19.

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;

20.

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

21.

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 =

22.

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.

23.

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

24.

Sorting your result
Aggregation of fields
Conditions in SQL
None of the mentioned

25.

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

26.

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.

27.

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

28.

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');

29.

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;

30.

CREATE
UPDATE
ALTER
SELECT

31.

SELECT
WHERE
ORDER BY
GROUP BY

32.

TRUE
FALSE

33.

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

34.

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

35.

AND, OR
< , > >, <>

36.

Natural key
Primary key
Not Null key
Alternate key

37.

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

38.

TRUE
FALSE

39.

Foreign Key
Unique Key
Primary Key
None of the above

40.

1
2
3
4

41.

Matches rows from two tables based on the values in common columns from each table
It includes all rows from the joined tables whether or not the other table has the matching row.Includes unmatched rows from one table and match rows from two tables based on the values in common columns from each table .
Includes unmatched rows from one table and match rows from two tables based on the values in common columns from each table
None of the above

42.

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;

43.

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

44.

SELF JOIN
INNER JOIN
FULL OUTER JOIN
None of the above

45.

TRUE
FALSE

46.

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;

47.

SELECT * FROM employees RIGHT departments ON employees.department_id = departments.department_id;
SELECT * FROM employees LEFT departments ON employees.department_id = departments.department_id;
SELECT * FROM employees JOIN departments ON employees.department_id = departments.department_id;
SELECT * FROM employee JOIN department ON employee.department_id = department.department_id;

48.

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);

49.

Inner
Cartesian
Outer
Left

50.

Inner, Outer, Self
Left,Middle, Half
None of above
Both A and B

51.

1000
500
2500
3000

52.

1175
1000
1350
2500

53.

9400
4000
5400
2500

54.

1000
1500
500
200

55.

Is illegal
Prints Garbage
Prints 045.925
Prints 50

56.

Data types
Primary keys
Default values
All of the above

57.

COUNT, MAX, AVG, SUM
MAX, AVG, SUM, SELECT
UNION, COUNT, MIN, DESC
AVG, MIN, MAX, ASC

58.

8
6
2
4

59.

8
1
2
4

60.

MOST
TOP
MAX
UPPER

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

Customers Table:
Customer_Number, Customer_Name, Credit_Limit

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 SUM(Salary) from Salesemployee
where Name = 'Tom';

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

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(*) from Salesemployee
WHERE Salary >500;

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id