Parameter for Last Week, Last Month & Last Year from the current Date

Question

I have a crystal report that has a StartDate & EndDate parameters from the stored procedure that I am calling. Now i got a new requirement saying that my user wants a drop-down parameter in which they need to be able to select last week (Sunday to Saturday), last month, last year instead of manually selecting start date and end date parameters? Can anyone please explain me how to do this?
(FYI, I am using Crystal 2008)

Answer 1

Hi Naveen,
You'll need to handle the logic in the Stored Proc's where clause.
If you're using oracle, I have something like this in the Stored Proc's where clause for our reports:
Where {Date_Field} Between
Decode('{?Relative Date}',
'Yesterday', sysdate - 1,
'Last Week', Tunc(sysdate, 'IW')-7)
AND
Decode('{?Relative Date}',
'Yesterday', sysdate,
'Last Week', Tunc(sysdate, 'IW'))
where 'Relative Date' is a prompt in the Stored Proc and 'yesterday'. 'last week' are the 'static values' in the prompt.
-Abhilash