Using a variable in SQL to store intermediate results

Question

I'm new to Crystal Reports, so pardon my ignorance.
I need to write a SQL statement in Crystal Reports (Ver. 11) that uses results from a query and stores them in a variable for further use in the statement. Something like this:
DECLARE @my_variable INT;
SET @my_variable=
CASE
                WHEN DATEPART (m,{?Date})<7
                THEN DATEPART (yyyy,( DATEADD (year,-1, {?Date})))
                ELSE DATEPART (yyyy,( DATEADD (year,0, {?Date})))
END
(Where {?Date} is a date parameter)
Is it possible to achieve this in the above form or some other form in Crystal Reports?
Thanks

Answer 1

Simple answer... When I used the variable, I marked it as a string.  There is an email address setting.