decimal - Query division in oracle -


how can divide result of query1 query2? (the result has decimal points.) thank you:

query1:

select count(*) aa    registered_devices   status = 1;

query2: 

select sum(last_count) current_daily    statistics               to_char(counter_date, 'yyyymmddhh24') between to_char (sysdate - 1, 'yyyymmddhh24')                          , to_char (sysdate - 1 /24, 'yyyymmddhh24')     , counter_type = 'ws_get_offer_accept'

you can this:

select (select count(*) aa            registered_devices          status = 1)        / (select sum(last_count) current_daily              statistics                          to_char(counter_date, 'yyyymmddhh24')                    between to_char (sysdate - 1, 'yyyymmddhh24')                                              , to_char (sysdate - 1 /24, 'yyyymmddhh24')                , counter_type = 'ws_get_offer_accept')   dual

(or vice-versa if meant other way).

beware of divide-by-zero error!


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