STRUCTURED QUERY LANGUAGE TEST

Progress

1.

To delete the database __________ Command is used

2.

The result of a SQL SELECT statement is a ______.

3.

 Which of the following is the original purpose of SQL?

4.

SQL can be used to

5.

What is the main language of  Transact-SQL?

6.

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

7.

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

8.

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    

9.

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;

10.

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

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

11.

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;  

12.

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;

13.

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

14.

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

15.

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    

16.

Which of the SQL statement is correct?

17.

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

18.

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

19.

Select ________ dept_name from instructor; 

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

20.

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?

21.

The HAVING clause does which of the following?

22.

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?

23.

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

24.

 Syntax for create a  views is _______

25.

You can delete a view with _____________ Command.

26.

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'

27.

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

28.

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

29.

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

30.

Find the names of the countries whose condition is sunny

31.

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

32.

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

33.

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

34.

Which of the following statements are TRUE regarding subqueries?

35.

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

36.

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

37.

Student (ID, Name, Dept_name, Total_credit)

In this above query which attribute form the Primary Key?

38.

A ______ index is created based on only one table column.

39.

Which key accepts multiple NULL values?

40.

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

41.

What is the function of Full Outer Join in SQL?

42.

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

43.

What are the joins available in SQL?

44.

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

45.

How many tables may include with a join? 

46.

Can you validate the statement?

Alias is used in Joins.

True or False?

47.

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

48.

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

49.

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?

50.

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? 

51.

Which SQL keyword is used to retrieve the highest value? 

52.

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

 

53.

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

 

54.

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 = 'Marketing';

 

55.

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

 

56.

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

 

57.

Which SQL keyword is used to retrieve a maximum value?

58.

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

 

59.

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

 

60.

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'