SQL | Structured Query Language Test

Which of the following is a valid SQL type?

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

What does a DML Stand for?

Which of the following database cannot be dropped?

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

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

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

Syntax for create a views is _______

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 one is not used in SQL?

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

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

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

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

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 ________ dept_name from instructor;

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

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

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

Find the names of the countries whose condition is sunny

Which of the SQL statement is correct?

Find all the cities whose humidity is 89

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

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

The SQL WHERE clause used for

Can you validate the statement?

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

True or False?

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

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

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

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?

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

SELECT emp_id, fname, lname

FROM person

ORDER BY emp_id;

Which of the following multi-row operators can be used with a sub-query?

A subquery in an SQL SELECT statement is enclosed in

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

Which of the following statements are TRUE regarding subqueries?

Can you validate the statement?

A subquery can be used anywhere an expression is allowed.

True or False?

By default, which key creates Clustered index?

Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?

Can you validate the statement?

A column with a Unique key has duplicate values.

True or False?

Can you validate the statement?

A table contains more than one foreign key

True or False?

Student (ID, Name, Dept_name, Total_credit)

In this above query which attribute form the Primary Key?

Choose the correct query for the below scenario.

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

Which type of join is not desirable for retrieval?

Choose the query that matches the above image.

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?

Join is different from Inner join.

True or False?

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

Where are Joins used?

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

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT AVG(Salary) from Salesemployee

where Dept = ' HR';

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 AVG(Salary) from Salesemployee

WHERE Gender = 'Female';

Which SQL keyword is used to retrieve a maximum value?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT COUNT(*) from Salesemployee

WHERE Employee_ID % 2 <> 0 ;

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 the following query?

SELECT SUM(Salary) from Salesemployee

WHERE Gender = 'Male';

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 SUM(Salary) from Salesemployee

where Name = 'Tom';

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%';

STRUCTURED QUERY LANGUAGE TEST

Which of the following is a valid SQL type?

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

What does a DML Stand for?

Which of the following database cannot be dropped?

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

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

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

Syntax for create a views is _______

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 one is not used in SQL?

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

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

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

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

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

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

Find the names of the countries whose condition is sunny

Which of the SQL statement is correct?

Find all the cities whose humidity is 89

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

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

The SQL WHERE clause used for

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

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

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

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

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?

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

Which of the following multi-row operators can be used with a sub-query?

A subquery in an SQL SELECT statement is enclosed in

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

Which of the following statements are TRUE regarding subqueries?

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

By default, which key creates Clustered index?

Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?

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

Can you validate the statement? A table contains more than one foreign key True or False?

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

Choose the correct query for the below scenario.

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

Which type of join is not desirable for retrieval?

Choose the query that matches the above image.

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? Join is different from Inner join. True or False?

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

Where are Joins used?

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

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

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

Which SQL keyword is used to retrieve a maximum value?

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

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 the following query? SELECT SUM(Salary) from Salesemployee WHERE Gender = 'Male';

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

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%';

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

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

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 ________ dept_name from instructor;

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

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

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'

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

SELECT emp_id, fname, lname

FROM person

ORDER BY emp_id;

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

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?

Can you validate the statement?

A table contains more than one foreign key

True or False?

Student (ID, Name, Dept_name, Total_credit)

In this above query which attribute form the Primary Key?

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

Which Join?

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?

Join is different from Inner join.

True or False?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT AVG(Salary) from Salesemployee

where Dept = ' HR';

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 AVG(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 Employee_ID % 2 <> 0 ;

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 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 SUM(Salary) from Salesemployee

where Name = 'Tom';

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%';

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

1.

Character
Numeric
Float
All the above

2.

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

3.

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

4.

TEMPDB
Master
Msdb
All of the Mentioned

5.

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

6.

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

7.

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;

8.

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

9.

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

10.

Create Table
Create Index
Create Unique Index
Create Table Column

11.

ASC
DESC
Order by Randomly
No output

12.

CREATE
UPDATE
ALTER
SELECT

13.

ORDER BY
SORT
ORDER
SORT BY

14.

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.

15.

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

16.

All
From
Distinct
Name

17.

Limit 10
Up to 10
Only 10
Max 10

18.

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');

19.

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

20.

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

21.

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.

22.

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;

23.

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.

24.

TRUE
FALSE

25.

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

26.

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 =

27.

TRUE
FALSE

28.

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

29.

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);

30.

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

31.

IN
ANY
ALL
All of the above

32.

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

33.

TRUE
FALSE

34.

A subquery can retrieve zero or more rows
A subquery can appear on either side of a comparison operator
There is no limit on the number of subquery levels in the WHERE clause of a SELECT statement
Both A and B

35.

TRUE
FALSE

36.

Foreign Key constraint
Unique Key constraint
Primary Key constraint
None of the above

37.

Candidate Key
Sub Key
Super Key
Foreign Key

38.

TRUE
FALSE

39.

TRUE
FALSE

40.

Name
Dept
Total_Credit
ID

41.

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;

42.

Inner
Cartesian
Outer
Left

43.

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

44.

Inner
Left
Right
Outer

45.

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

46.

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

47.

TRUE
FALSE

48.

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;

49.

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.

50.

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.

51.

1067
500
2500
1064

52.

Is illegal
Prints Garbage
Prints 045.925
Prints 50

53.

1175
1000
1350
2500

54.

MOST
TOP
MAX
UPPER

55.

8
4
2

56.

200
500
700
100

57.

9400
4000
5400
2500

58.

add
avg
max
sum

59.

1000
500
2500
3000

60.

3
5
1
4

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

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 AVG(Salary) from Salesemployee
where Dept = ' HR';

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

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

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

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id