Use tables and data from HW$3.$ To send birthday emails, write a query to get the id and full

names and email of customers and directors born in the year$$s second quarter $($meaning from

April to June$).$ Use set operations.

$2.$ Use HR tables and data from homework $1.$ Find a list of employees that earn a salary higher

than $8999$ but lower than $17001$ within departments Executive and Finance. Use difference

$($minus$)$ operation

$3.$ Solve the query on question Part II$.$ Q$2($previous question$)$ but using the union operation.

$4.$ Use the intersection operation to solve Part I Q$5,$ but only return the id$,$ first name, last name,

and salary. You must use the operator $3$ times.