Getting the last date of the previous month
I have a situation in which I need to retrieve the last day of the previous month to see if something falls within that Billing Cycle. I am dealing with an Oracle 9i Environment; Version 9.2.0.8.0. I have done a little research and see that there is an "ADD_MONTHS" function. But no such thing as "SUBTRACT_MONTHS" function. Is there any way to get the last day of the previous month?
Thanks in advance for your review and help.
PSULionRP