show all record between two date after group by and aggrigation...

["deepak pal" <deepak.05pal@xxxxxxxxx>]

i am fatching record's from data base between two date range for
registration_date coloum and than group by an count it using
count(registration_date) i have to show all dates even if date is not
there in registration_date ,it should show date and 0 in count.,how can
i do it plz healp.......