SQL | Structured Query Language Test

The result of a SQL SELECT statement is a ______.

What is the main language of Transact-SQL?

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

Which of the following database cannot be dropped?

Which one is not part of the Database backup file?

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.

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

Analyze the following Query and Mark the answer whether it's a correct query or not?

Select OrderID, Shipdate

From Orders

Where CustomerID=20

Order by Shipdate;

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;

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

Which of the SQL statement is correct?

Syntax for create a views is _______

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

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''?

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

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;

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

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?

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

The SQL WHERE clause used for

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 keyword is used to sort the result-set?

You can delete a view with _____________ Command.

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

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

Find all the cities whose humidity is 89

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

SELECT d.name, COUNT (emp_id) emp_no

FROM department d INNER JOIN Employee e

ON d.dept_id=e.emp_id

GROUP BY d.name

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 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?

A subquery in an SQL SELECT statement is enclosed in

Can you validate the statement?

A subquery can be used anywhere an expression is allowed.

True or False?

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

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

Which key accepts multiple NULL values?

Which of the following is correct DROP INDEX Command?

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

Can you validate the statement?

A table contains more than one foreign key

True or False?

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

Choose the correct query for the below scenario.

What is the function of Full Outer Join in SQL?

Where are Joins used?

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

What is the syntax for joining two tables? Pick Two

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.

How many tables may include with a join?

Can you validate the statement?

Alias is used in Joins.

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';

What values does the count(*) function ignore?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MAX(Salary) from Salesemployee

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

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 MAX(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';

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

Which SQL keyword is used to retrieve a maximum value?

“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 Gender = 'Female';

STRUCTURED QUERY LANGUAGE TEST

The result of a SQL SELECT statement is a ______.

What is the main language of Transact-SQL?

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

Which of the following database cannot be dropped?

Which one is not part of the Database backup file?

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.

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

Analyze the following Query and Mark the answer whether it's a correct query or not? Select OrderID, Shipdate From Orders Where CustomerID=20 Order by Shipdate;

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;

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

Which of the SQL statement is correct?

Syntax for create a views is _______

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

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''?

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

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;

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

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?

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

The SQL WHERE clause used for

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 keyword is used to sort the result-set?

You can delete a view with _____________ Command.

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

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

Find all the cities whose humidity is 89

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

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 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?

A subquery in an SQL SELECT statement is enclosed in

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

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

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

Which key accepts multiple NULL values?

Which of the following is correct DROP INDEX Command?

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

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

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

Choose the correct query for the below scenario.

What is the function of Full Outer Join in SQL?

Where are Joins used?

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

What is the syntax for joining two tables? Pick Two

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.

How many tables may include with a join?

Can you validate the statement? Alias is used in Joins. 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';

What values does the count(*) function ignore?

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

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 MAX(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';

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

Which SQL keyword is used to retrieve a maximum value?

“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 Gender = 'Female';

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

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.

Analyze the following Query and Mark the answer whether it's a correct query or not?

Select OrderID, Shipdate

From Orders

Where CustomerID=20

Order by Shipdate;

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;

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, 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?

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

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 “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

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?

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 table contains more than one foreign key

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?

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 MAX(Salary) from Salesemployee

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

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MAX(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 MIN(Salary) from Salesemployee

WHERE Gender = 'Female';

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

1.

File
Report
Table
Form

2.

DDL
DML
DCL
None of the above

3.

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

4.

TEMPDB
Master
Msdb
All of the Mentioned

5.

Full
Differential
Transaction log
Backup log

6.

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

7.

Limit 10
Up to 10
Only 10
Max 10

8.

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

9.

TRUE
FALSE

10.

TRUE
FALSE

11.

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;

12.

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

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.

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

15.

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%'

16.

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

17.

TRUE
FALSE

18.

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

19.

Salary*1.1
ID
Where
Instructor

20.

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);

21.

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;

22.

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.

23.

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.

24.

ORDER BY
SORT
ORDER
SORT BY

25.

DROP VIEW
DELETE VIEW
REMOVE VIEW
TRUNCATE VIEW

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.

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

28.

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

29.

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

30.

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

31.

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

32.

TRUE
FALSE

33.

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

34.

TRUE
FALSE

35.

SELECT
WHERE
ORDER BY
GROUP BY

36.

Data types
Primary keys
Default values
All of the above

37.

Foreign Key
Unique Key
Primary Key
None of the above

38.

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

39.

1
2
3
4

40.

TRUE
FALSE

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.

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;

43.

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

44.

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.

45.

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;

46.

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

47.

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

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.

0
1
2
More than 1

50.

TRUE
FALSE

51.

1067
500
2500
1064

52.

Repetitive values
Null values
Characters
Integers

53.

8
1
2
4

54.

add
avg
max
sum

55.

5400
9400
2000
2500

56.

9400
4000
5400
2500

57.

COUNT
UPPER
LOWER
All of the mentioned

58.

MOST
TOP
MAX
UPPER

59.

Aggregate functions
Operators
Clauses
All of the mentioned

60.

200
700
2000
2500

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

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

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 MAX(Salary) from Salesemployee
WHERE Salary >=2500 and Dept = 'Sales' ;

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

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id