STRUCTURED QUERY LANGUAGE TEST

Progress

1.

What is the main language of  Transact-SQL?

2.

Which of the following is not a database object?

3.

What is the SQL query used to retrieve all the data from the customer table?

4.

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

5.

Which one is a non-relational database?

6.

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''?

7.

The SQL WHERE clause used for 

8.

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

9.

The HAVING clause does which of the following?

10.

 Syntax for create a  views is _______

11.

Find all the cities whose humidity is 89

12.

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

13.

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    

14.

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;

15.

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

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

16.

Can you validate the statement?

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

True or False?

17.

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

18.

Select ________ dept_name from instructor; 

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

19.

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?

20.

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;

21.

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

22.

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

23.

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

24.

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

25.

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

26.

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

27.

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'

28.

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    

29.

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

30.

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

31.

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

32.

Can you validate the statement?

A subquery can be used anywhere an expression is allowed.

True or False?

33.

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

34.

What is "Subquery"?

35.

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

36.

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

37.

Does an Index help to speed up?

38.

Can you validate the statement?

A table contains more than one foreign key

True or False?

39.

Student (ID, Name, Dept_name, Total_credit)

In this above query which attribute form the Primary Key?

40.

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

41.

Choose the correct query for the below scenario.

 

42.

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

Which Join?

43.

How many tables may include with a join? 

44.

Below image depicts:

45.

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

46.

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? 

47.

Choose the query that matches the above image.

48.

What is the function of Full Outer Join in SQL?

49.

Can you validate the statement?

Alias is used in Joins.

True or False?

50.

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?

51.

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

52.

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

 

53.

The SQL Statement

SELECT ROUND(45.926, -1) FROM DUAL;

54.

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

 

55.

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

56.

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 ;  

57.

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

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.

Which of the following is incorrect SQL?

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'