SQL | Structured Query Language Test

Which one is a non-relational database?

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

Which of the following is not a database object?

Which one is not part of the Database backup file?

Which of the following is a valid SQL type?

Select ________ dept_name from instructor;

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

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

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

Find the names of the countries whose condition is sunny

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

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''?

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

Find all the cities whose humidity is 89

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

Which one is not used in SQL?

The HAVING clause does which of the following?

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

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

The SQL WHERE clause used for

You can delete a view with _____________ Command.

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;

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

Syntax for create a views is _______

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?

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

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

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

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?

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

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

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

Which of the following is true about sub-queries?

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?

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

Can you validate the statement?

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

True or False?

Which one of the following can be taken as a Primary Key?

Which of the following is correct DROP INDEX Command?

Which of the following is not a Key in SQL Server?

Student (ID, Name, Dept_name, Total_credit)

In this above query which attribute form the Primary Key?

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

Where are Joins used?

Choose the query that matches the above image.

How many tables may include with a 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?

Alias is used in Joins.

True or False?

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.

What are the joins available in SQL?

What is the syntax for joining two tables? Pick Two

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 SQL keyword is used to retrieve the highest value?

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

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 Salary >500;

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%';

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 the following query?

SELECT SUM(Salary) from Salesemployee

WHERE Gender = 'Male';

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

STRUCTURED QUERY LANGUAGE TEST

Which one is a non-relational database?

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

Which of the following is not a database object?

Which one is not part of the Database backup file?

Which of the following is a valid SQL type?

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

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

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

Find the names of the countries whose condition is sunny

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

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''?

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

Find all the cities whose humidity is 89

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

Which one is not used in SQL?

The HAVING clause does which of the following?

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

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

The SQL WHERE clause used for

You can delete a view with _____________ Command.

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;

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

Syntax for create a views is _______

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?

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

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

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?

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

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

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

Which of the following is true about sub-queries?

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?

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

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

Which one of the following can be taken as a Primary Key?

Which of the following is correct DROP INDEX Command?

Which of the following is not a Key in SQL Server?

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

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

Where are Joins used?

Choose the query that matches the above image.

How many tables may include with a 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? Alias is used in Joins. True or False?

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.

What are the joins available in SQL?

What is the syntax for joining two tables? Pick Two

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 SQL keyword is used to retrieve the highest value?

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

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 Salary >500;

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%';

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

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

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 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

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

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;

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

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

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

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

Can you validate the statement?

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?

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

True or False?

Student (ID, Name, Dept_name, Total_credit)

In this above query which attribute form the Primary Key?

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?

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 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 Salary >500;

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%';

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 the following query?

SELECT SUM(Salary) from Salesemployee

WHERE Gender = 'Male';

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

1.

Postgre
MySQL
MariaDB
MongoDB

2.

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

3.

Stored Procedure
Index
Database Diagram
Powershell

4.

Full
Differential
Transaction log
Backup log

5.

Character
Numeric
Float
All the above

6.

All
From
Distinct
Name

7.

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

8.

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

9.

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');

10.

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');

11.

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%'

12.

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;

13.

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

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.

Create Table
Create Index
Create Unique Index
Create Table Column

16.

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.

17.

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.

18.

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

19.

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

20.

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.

21.

DROP VIEW
DELETE VIEW
REMOVE VIEW
TRUNCATE VIEW

22.

TRUE
FALSE

23.

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;

24.

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

25.

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);

26.

Limit 10
Up to 10
Only 10
Max 10

27.

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

28.

Salary*1.1
ID
Where
Instructor

29.

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 =

30.

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

31.

TRUE
FALSE

32.

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

33.

SELECT
WHERE
ORDER BY
GROUP BY

34.

TRUE
FALSE

35.

IN
ANY
ALL
All of the above

36.

TRUE
FALSE

37.

Order Number
Order Date
Order Location
Order Name

38.

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

39.

Primary
Foreign
Alternate
Power

40.

Name
Dept
Total_Credit
ID

41.

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;

42.

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.

43.

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

44.

0
1
2
More than 1

45.

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

46.

TRUE
FALSE

47.

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;

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 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;

49.

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

50.

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

51.

Is illegal
Prints Garbage
Prints 045.925
Prints 50

52.

3
1
8
4

53.

MOST
TOP
MAX
UPPER

54.

COUNT
UPPER
LOWER
All of the mentioned

55.

1175
1000
1350
2500

56.

8
6
2
4

57.

3
5
1
4

58.

1000
1500
500
200

59.

9400
4000
5400
2500

60.

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

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 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 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 Salary >500;

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

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

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id