STRUCTURED QUERY LANGUAGE TEST

Progress

1.

SQL can be used to

2.

The result of a SQL SELECT statement is a ______.

3.

What is the meaning of a Database?

4.

Which of the following is a valid SQL type?

5.

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

6.

The HAVING clause does which of the following?

7.

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

8.

What is the significance of “ORDER BY” in the following MySQL statement?

SELECT emp_id, fname, lname  
FROM person    
ORDER BY emp_id;  

9.

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    

10.

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''?

11.

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

12.

Which one is not used in SQL?

13.

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

14.

Which of the SQL statement is correct?

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.

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

17.

 Syntax for create a  views is _______

18.

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

19.

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

20.

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

21.

Select ________ dept_name from instructor; 

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

22.

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

23.

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

24.

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;

25.

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

26.

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          

27.

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

28.

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

29.

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

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

30.

You can delete a view with _____________ Command.

31.

Can you validate the statement?

A subquery can be used anywhere an expression is allowed.

True or False?

32.

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

33.

Which of the following statements are TRUE regarding subqueries?

34.

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

35.

A subquery in an SQL SELECT statement is enclosed in

36.

Can you validate the statement?

A column with a Unique key has duplicate values.

True or False?

37.

Can you validate the statement?

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

True or False?

38.

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

39.

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

40.

Can you validate the statement?

A table contains more than one foreign key

True or False?

41.

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

42.

What is the syntax for joining two tables? Pick Two

43.

What is the function of Full Outer Join in SQL?

44.

How many tables may include with a join? 

45.

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

46.

Where are Joins used?

47.

Can you validate the statement?

Join is different from Inner join.

True or False?

48.

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

Which Join?

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.

Below image depicts:

51.

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%';  

 

52.

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

53.

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 ;    

 

54.

The SQL Statement

SELECT ROUND(45.926, -1) FROM DUAL;

55.

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 ;  

 

56.

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

57.

Which SQL keyword is used to retrieve the highest value? 

58.

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

 

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.

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%';

 

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