Show that the order (Q,

(1) for each Customer (e.g., customer C), display all other customers who have higher salary than this Customer (e.g., customer C). (use inner join, display each customer’s ID, name, and all higher salaries, you don’t need to display information about the customers who have higher salary.)           (2) for each Customer (e.g., customer C), display all other customers who have higher salary and are younger than this Customer (e.g., customer C).

You may use the Boolean operator to search for data on two separate topics at once. To get the most relevant results, Kevin should utilize which of the following Boolean operators?

For questions 4 and 5, use the following order for the rows in your truth tables.P QT TT FF TF FP Q RT T TT T FT F TT F FF T TF T FF F TF F F4. (8 marks) Construct truth tables for the following statement forms.In your truth table, make sure that you include a column for each intermediate expression that you evaluate on your way to your final answer.(a) (P ↔ ¬Q) ∧ (P ↔ Q)(b) (¬P ∨ (¬Q ∨ ¬R)) ∨ (P ∧ Q)