STRUCTURED QUERY LANGUAGE TEST

Progress

1.

SQL can be used to

2.

In SQL, which command is used to change a table's storage characteristics?

3.

To Create a new database __________ Command is used

4.

Which file type is used for database backup?

5.

Which of the following database cannot be dropped?

6.

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

7.

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?

8.

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

9.

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

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

10.

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

select deptName
from Employee
having avg (salary)
group by deptName
where sex = 'M'

11.

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

12.

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    

13.

Find all the cities whose humidity is 89

14.

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

15.

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;

16.

Which one is not used in SQL?

17.

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?

18.

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

19.

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

20.

Which of the SQL statement is correct?

21.

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    

22.

The HAVING clause does which of the following?

23.

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

24.

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

25.

Find the names of the countries whose condition is sunny

26.

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''?

27.

You can delete a view with _____________ Command.

28.

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

29.

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          

30.

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

31.

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

32.

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

33.

A subquery in an SQL SELECT statement is enclosed in

34.

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

35.

Where subqueries can not be used?

36.

Which of the following is correct DROP INDEX Command?

37.

Can you validate the statement?

A column with a Unique key has duplicate values.

True or False?

38.

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

39.

Student (ID, Name, Dept_name, Total_credit)

In this above query which attribute form the Primary Key?

40.

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

41.

What are the joins available in SQL?

42.

Evaluate this SQL statement:

SELECT employee_id, e.department_id, department_name, salary
FROM employees e, departments d  
WHERE e.department_id = d.department_id;  

Which SQL statement is equivalent to the above SQL statement? 

43.

Can you validate the statement?

Alias is used in Joins.

True or False?

44.

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

45.

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?

46.

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

47.

Below image depicts:

48.

What is the function of Full Outer Join in SQL?

49.

Where are Joins used?

50.

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

Which Join?

51.

What values does the count(*) function ignore?

52.

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%';

 

53.

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';

 

54.

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

 

55.

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';

 

56.

“COUNT” keyword belongs to which categories in MySQL?

57.

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

58.

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' ;

 

59.

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';      
        

60.

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

 

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