Need a SQL statement to select Fiscal years based on current quarter in Crystal

Using BO Crystal 2013
I need to report sales data comparing last fiscal year-quarter to this Fiscal year-quarter. Fiscal years is Dec 1 to Nov 30.
I have a few formulas that will select the data but need it entered as a SQL statement so it will get passed to the database and filter the data much earlier.

If I run the report today it will pull sales data from 6/1/14 to 8/31/14 and 6/1/15 to 8/31/15.

Here are two examples that give me this fiscal year-quarter. It is changed for last fiscal year-quarter.
This year start date:
if Month(CurrentDate) in [12] then
Date(Year(CurrentDate)+1,2,28)
else if
Month(CurrentDate) in [1,2] then
Date(Year(CurrentDate),2,28)
else if
Month(CurrentDate) in [3,4,5] then
Date(Year(CurrentDate),5,31)
else if
Month(CurrentDate) in [6,7,8] then
Date(Year(CurrentDate),8,31)
else if
Month(CurrentDate) in [9,10,11] then
Date(Year(CurrentDate),11,30)

to

This year end date

If Month(CurrentDate) in [12] then
Date(Year(CurrentDate),12,1)
else if
Month(CurrentDate) in [1,2] then
Date(Year(CurrentDate)-1,12,1)
else if
Month(CurrentDate) in [3,4,5] then
Date(Year(CurrentDate),3,1)
else if
Month(CurrentDate) in [6,7,8] then
Date(Year(CurrentDate),6,1)
else if
Month(CurrentDate) in [9,10,11] then
Date(Year(CurrentDate),9,1)