STRUCTURED QUERY LANGUAGE TEST

Progress

1.

Which of the following database cannot be dropped?

2.

What is the full form of SQL?

3.

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

4.

 What does a  DML Stand for?

5.

 Which of the following is the original purpose of SQL?

6.

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          

7.

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    

8.

Which one is not used in SQL?

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.

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;

11.

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

12.

The HAVING clause does which of the following?

13.

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

14.

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'

15.

You can delete a view with _____________ Command.

16.

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

17.

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

18.

 Syntax for create a  views is _______

19.

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;

20.

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''?

21.

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

22.

The SQL WHERE clause used for 

23.

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

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.

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

26.

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

27.

Which of the SQL statement is correct?

28.

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

29.

Select ________ dept_name from instructor; 

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

30.

Can you validate the statement?

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

True or False?

31.

Which of the following is true about sub-queries?

32.

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

33.

Where subqueries can not be used?

34.

A subquery in an SQL SELECT statement is enclosed in

35.

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

36.

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

37.

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

38.

Student (ID, Name, Dept_name, Total_credit)

In this above query which attribute form the Primary Key?

39.

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

40.

Does an Index help to speed up?

41.

Choose the query that matches the above image.

42.

Can you validate the statement?

Alias is used in Joins.

True or False?

43.

Which type of join is not desirable for retrieval?

44.

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

Which Join?

45.

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

46.

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?

47.

What is the function of Full Outer Join in SQL?

48.

What is the syntax for joining two tables? Pick Two

49.

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

50.

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

51.

“COUNT” keyword belongs to which categories in MySQL?

52.

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 ;  

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 SUM(Salary) from Salesemployee 
where Name = 'Tom';  

 

55.

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

 

56.

Which SQL keyword is used to retrieve the highest value? 

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 'S%';

 

58.

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

59.

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT COUNT(*) from Salesemployee 
WHERE Employee_ID % 2 <> 0 ;  

 

60.

Which SQL keyword is used to retrieve a maximum value?

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