SQL | Structured Query Language Test

To Create a new database __________ Command is used

What is the full form of SQL?

Which of the following is not a database object?

What is the main language of Transact-SQL?

Which file type is used for database backup?

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

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

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 “ORDER BY” clause in MySQL?

Syntax for create a views is _______

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

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

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

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 “HAVING” clause in MySQL?

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?

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;

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

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

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

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

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

CREATE TABLE TestTable AS

SELECT customername, contactname

FROM customers;

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

SELECT d.name, COUNT (emp_id) emp_no

FROM department d INNER JOIN Employee e

ON d.dept_id=e.emp_id

GROUP BY d.name

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

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

Which one is not used in SQL?

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

You can delete a view with _____________ Command.

Can you validate the statement?

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

True or False?

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

Where subqueries can not be used?

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

Which of the following is true about sub-queries?

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

Can you validate the statement?

A column with a Primary key has a Null value.

True or False?

Which key accepts multiple NULL values?

Can you validate the statement?

We can use the index on columns that contain a high number of NULL values.

True or False?

Can you validate the statement?

A column with a Unique key has duplicate values.

True or False?

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

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?

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

Can you validate the statement?

Alias is used in Joins.

True or False?

Which type of join is not desirable for retrieval?

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

Which Join?

Choose the correct query for the below scenario.

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

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

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

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

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(*) from Salesemployee

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

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

In SQL - these functions - AVG, MIN, MAX, COUNT are called as ___________

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(Salary) from Salesemployee

where name Like 'S%' and Dept ='HR';

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

“COUNT” keyword belongs to which categories in MySQL?

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 MIN(Salary) from Salesemployee

WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT AVG(Salary) from Salesemployee

where Dept = ' HR';

STRUCTURED QUERY LANGUAGE TEST

To Create a new database __________ Command is used

What is the full form of SQL?

Which of the following is not a database object?

What is the main language of Transact-SQL?

Which file type is used for database backup?

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

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

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 “ORDER BY” clause in MySQL?

Syntax for create a views is _______

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

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

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

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 “HAVING” clause in MySQL?

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?

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;

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

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

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

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

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

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

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

Which one is not used in SQL?

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

You can delete a view with _____________ Command.

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

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

Where subqueries can not be used?

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

Which of the following is true about sub-queries?

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

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

Which key accepts multiple NULL values?

Can you validate the statement? We can use the index on columns that contain a high number of NULL values. True or False?

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

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

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?

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

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

Which type of join is not desirable for retrieval?

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

Choose the correct query for the below scenario.

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

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

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

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

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

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

In SQL - these functions - AVG, MIN, MAX, COUNT are called as ___________

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(Salary) from Salesemployee where name Like 'S%' and Dept ='HR';

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

“COUNT” keyword belongs to which categories in MySQL?

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

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

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

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

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

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?

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;

Select ________ dept_name from instructor;

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

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

CREATE TABLE TestTable AS

SELECT customername, contactname

FROM customers;

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

SELECT d.name, COUNT (emp_id) emp_no

FROM department d INNER JOIN Employee e

ON d.dept_id=e.emp_id

GROUP BY d.name

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?

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

True or False?

Can you validate the statement?

A column with a Primary key has a Null value.

True or False?

Can you validate the statement?

We can use the index on columns that contain a high number of NULL values.

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?

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

Which Join?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(*) from Salesemployee

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

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(Salary) from Salesemployee

where name Like 'S%' and Dept ='HR';

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 MIN(Salary) from Salesemployee

WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT AVG(Salary) from Salesemployee

where Dept = ' HR';

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

1.

New database_name
Create database database_name
First Database database_name
New database database_name

2.

Structured Query Language
Structured Query List
Simple Query Language
None of these

3.

Stored Procedure
Index
Database Diagram
Powershell

4.

DDL
DML
DCL
None of the above

5.

BAK
TXT
XML
XLSX

6.

ORDER BY
SORT
ORDER
SORT BY

7.

CREATE
UPDATE
ALTER
SELECT

8.

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

9.

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

10.

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

11.

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.

12.

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');

13.

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 =

14.

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

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.

Salary*1.1
ID
Where
Instructor

17.

TRUE
FALSE

18.

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;

19.

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;

20.

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

21.

All
From
Distinct
Name

22.

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

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.

TRUE
FALSE

25.

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

26.

Limit 10
Up to 10
Only 10
Max 10

27.

Create Table
Create Index
Create Unique Index
Create Table Column

28.

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.

29.

DROP VIEW
DELETE VIEW
REMOVE VIEW
TRUNCATE VIEW

30.

TRUE
FALSE

31.

AND, OR
< , > >, <>

32.

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

33.

SELECT
WHERE
ORDER BY
GROUP BY

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.

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

36.

TRUE
FALSE

37.

Foreign Key
Unique Key
Primary Key
None of the above

38.

TRUE
FALSE

39.

TRUE
FALSE

40.

Data types
Primary keys
Default values
All of the above

41.

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

42.

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;

43.

TRUE
FALSE

44.

Inner
Left
Right
Outer

45.

Inner
Cartesian
Outer
Left

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.

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
Cartesian
Outer
Left

49.

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;

50.

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 FULLY OUTER 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 SELF JOIN Customers ON Orders.CustomerID=Customers.CustomerID;

51.

8
6
3
4

52.

add
avg
max
sum

53.

Aggregate function
Adjunct function
Set Operation
Scalar Operation

54.

Is illegal
Prints Garbage
Prints 045.925
Prints 50

55.

3
1
8
4

56.

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

57.

Aggregate functions
Operators
Clauses
All of the mentioned

58.

50
500
200
100

59.

200
700
2000
2500

60.

1067
500
2500
1064

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

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

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 Count(*) from Salesemployee
WHERE Salary >=500 and Dept = 'Sales';

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

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

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

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id