SQL | Structured Query Language Test

SQL can be used to

What does a DML Stand for?

To delete the database __________ Command is used

What is the main language of Transact-SQL?

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

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

Select ________ dept_name from instructor;

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

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

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

Can you validate the statement?

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

True or False?

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?

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;

Syntax for create a views is _______

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

What is the meaning of the “HAVING” clause in MySQL?

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

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?

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;

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

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

SELECT emp_id, fname, lname

FROM person

ORDER BY emp_id;

How to create index idx_pname for multiple columns (Lastname, Firstname) in a Person table?

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

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

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

The HAVING clause does which of the following?

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

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

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

The SQL WHERE clause used for

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

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

What is "Subquery"?

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 key accepts multiple NULL values?

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

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?

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

Which type of join is not desirable for retrieval?

Choose the query that matches the above image.

Can you validate the statement?

Join is different from Inner join.

True or False?

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

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

Choose the correct query for the below scenario.

Below image depicts:

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?

Where are Joins used?

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';

Which among the following belongs to an “aggregate function”?

Which SQL keyword is used to retrieve the highest value?

Which of the following is incorrect SQL?

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 Salary >=500 and Dept = 'Sales';

Which SQL keyword is used to retrieve a maximum value?

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

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

What values does the count(*) function ignore?

STRUCTURED QUERY LANGUAGE TEST

SQL can be used to

What does a DML Stand for?

To delete the database __________ Command is used

What is the main language of Transact-SQL?

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

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

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

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

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

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

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?

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;

Syntax for create a views is _______

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

What is the meaning of the “HAVING” clause in MySQL?

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

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?

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;

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

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

How to create index idx_pname for multiple columns (Lastname, Firstname) in a Person table?

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

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

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

The HAVING clause does which of the following?

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

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

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

The SQL WHERE clause used for

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

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

What is "Subquery"?

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 key accepts multiple NULL values?

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

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?

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

Which type of join is not desirable for retrieval?

Choose the query that matches the above image.

Can you validate the statement? Join is different from Inner join. True or False?

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

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

Choose the correct query for the below scenario.

Below image depicts:

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?

Where are Joins used?

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';

Which among the following belongs to an “aggregate function”?

Which SQL keyword is used to retrieve the highest value?

Which of the following is incorrect SQL?

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 Salary >=500 and Dept = 'Sales';

Which SQL keyword is used to retrieve a maximum value?

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

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

What values does the count(*) function ignore?

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 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

Select ________ dept_name from instructor;

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

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?

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

True or False?

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?

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

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;

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

SELECT emp_id, fname, lname

FROM person

ORDER BY emp_id;

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

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

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

Can you validate the statement?

Join is different from Inner join.

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?

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 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 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.

Create database structures only
Query database data only
Modify database data only
All of the above can be done by SQL

2.

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

3.

Drop database_name
Drop database database_name
Delete database_name
Delete database database_name

4.

DDL
DML
DCL
None of the above

5.

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

6.

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.

7.

All
From
Distinct
Name

8.

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

9.

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

10.

TRUE
FALSE

11.

Salary*1.1
ID
Where
Instructor

12.

TRUE
FALSE

13.

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

14.

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

15.

To filter out the row values
To filter out the column values
To filter out the row and column values
None of the mentioned

16.

CREATE
UPDATE
ALTER
SELECT

17.

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);

18.

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

19.

ORDER BY
SORT
ORDER
SORT BY

20.

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

21.

CREATE INDEX idx_pname ON Person (LastName, FirstName);
CREATE INDEX idx_pname ON Person;
CREATE INDEX idx_pname ON Person (FirstName, LastName);
CREATE INDEX idx_pname Using (LastName, FirstName) ON Persons

22.

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;

23.

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

24.

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

25.

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.

26.

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');

27.

ASC
DESC
Order by Randomly
No output

28.

Limit 10
Up to 10
Only 10
Max 10

29.

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');

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.

IN
ANY
ALL
All of the above

32.

SELECT
WHERE
ORDER BY
GROUP BY

33.

Used for create new database
Using Where clause in query
Query with in a query
Joining multiple tables together

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.

TRUE
FALSE

36.

Foreign Key
Unique Key
Primary Key
None of the above

37.

Candidate Key
Sub Key
Super Key
Foreign Key

38.

Natural key
Primary key
Not Null key
Alternate key

39.

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

40.

1
2
3
4

41.

Inner
Left
Right
Outer

42.

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

43.

TRUE
FALSE

44.

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.

45.

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;

46.

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;

47.

SELF JOIN
INNER JOIN
FULL OUTER JOIN
None of the above

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.

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

50.

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.

51.

9400
4000
5400
2500

52.

COUNT
UPPER
LOWER
All of the mentioned

53.

MOST
TOP
MAX
UPPER

54.

Select max(Marks) from student;
Select sum(Marks) from student;
Select max(Marks1+Marks2) from student;
Select max(Marks1, Marks2) from student;

55.

200
700
2000
2500

56.

8
6
3
4

57.

MOST
TOP
MAX
UPPER

58.

Data types
Primary keys
Default values
All of the above

59.

add
avg
max
sum

60.

Repetitive values
Null values
Characters
Integers

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 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 Salary >=500 and Dept = 'Sales';

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id