Consider the table below and answer the questions that follow. Table 3: staffilst 4.1 Create a query to view each employee's wage as well as what it would be if you added 5000 to it. (5 Marks) 4.2 In September Andrew received 11764.658 because of some deductions from his wage. Implement CEILING and FLOOR functions on SQL developer to round the amount (11764.658) to a nearest whole number. (5 Marks) 4.3. Let the output from CEILING be ' y ' and output from FLOOR be ' x '. Is y>x ? Explain your answer. (5 Marks) 4.4 Assume you want to combine the name and salary value of an employee (Johnson) from the stafflist table (concatenation). Create SQL query to perform the operation. Keep a space between the name and wage. (5 Marks) 4.5 Assume you have been assigned the responsibility of extracting the last three characters from the Stafflist table's name field. Is it possible to run this query without utilizing the LENGTH function