STRUCTURED QUERY LANGUAGE TEST

Progress

1.

The result of a SQL SELECT statement is a ______.

2.

What is the main language of  Transact-SQL?

3.

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

4.

What is the meaning of a Database?

5.

SQL can be used to

6.

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;

7.

Select ________ dept_name from instructor; 

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

8.

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

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

9.

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

10.

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

11.

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

12.

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

13.

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

14.

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

15.

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

16.

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

17.

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

18.

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

19.

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

20.

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    

21.

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;  

22.

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''?

23.

Which of the SQL statement is correct?

24.

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?

25.

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

26.

The SQL WHERE clause used for 

27.

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

28.

You can delete a view with _____________ Command.

29.

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    

30.

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

31.

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

32.

What is "Subquery"?

33.

Which of the following statements are TRUE regarding subqueries?

34.

Can you validate the statement?

A subquery can be used anywhere an expression is allowed.

True or False?

35.

A subquery in an SQL SELECT statement is enclosed in

36.

Can you validate the statement?

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

True or False?

37.

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

38.

Can you validate the statement?

A column with a Unique key has duplicate values.

True or False?

39.

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

40.

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

41.

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

42.

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?

43.

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

 

44.

What is the function of Full Outer Join in SQL?

45.

What are the joins available in SQL?

46.

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

47.

Below image depicts:

48.

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? 

49.

Can you validate the statement?

Alias is used in Joins.

True or False?

50.

In the absence of WHERE condition this JOIN will function like a _______.

51.

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 ;  

52.

The SQL Statement

SELECT ROUND(45.926, -1) FROM DUAL;

53.

In SQL - these functions - AVG, MIN, MAX, COUNT are called as ___________

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

 

56.

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 ;  

 

57.

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%';  

 

58.

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';

 

59.

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

 

60.

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%';

 

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