How to achive using analytical functions -- please help

Question

oracle version : 10g
-- 999 means ALL values for that key
with input_parameters as (select 10 filter_key , '10ACCC' filter_value from dual union all
select 50 filter_key ,'10ACCC0001' filter_value from dual union all
select 60 filter_key , 'PIP' filter_value from dual union all
select 70 filter_key , 'A' filter_value from dual) select * from input_parameters;
with profile_search as(
select 100 profile_id , 10 filter_key , '10ACCC' filter_value from dual union all
select 100 profile_id , 50 filter_key , '10ACCC0001' filter_value from dual union all
select 100 profile_id , 50 filter_key , '10ACCC0002' filter_value from dual union all
select 100 profile_id , 60 filter_key , '999' filter_value from dual union all
select 100 profile_id , 70 filter_key , '999' filter_value from dual union all
select 101 profile_id , 10 filter_key , '10ACCC' filter_value from dual union all
select 101 profile_id , 50 filter_key , '10ACCC001' filter_value from dual union all
select 101 profile_id , 60 filter_key , 'PIP' filter_value from dual union all
select 101 profile_id , 70 filter_key , '999' filter_value from dual union all
select 102 profile_id , 10 filter_key , '10ACCC' filter_value from dual union all
select 102 profile_id , 50 filter_key , '10ACCC0001' filter_value from dual union all
select 102 profile_id , 60 filter_key , 'PIP' filter_value from dual union all
select 102 profile_id , 70 filter_key , 'A' filter_value from dual)
select filter_key , wm_concat(filter_value) from profile_search group by profile_id, filter_key ;
need to identify profile that matches input parameters
102 is first match because it matches exactly
101 is second match because 999 can match any value
100 is third match KEY 70 HAS HIGHEST WEIGHT,
KEY 60 has next highest weight and KEY 50 has next highest weight
results required :
profile_id : 102
Edited by: devarade on Jan 19, 2010 8:01 PM
Edited by: devarade on Jan 19, 2010 8:01 PM

Answer 1

I assume there is a typo in your sample:
select 101 profile_id , 50 filter_key , '10ACCC001' filter_value from dual union allshould be:
select 101 profile_id , 50 filter_key , '10ACCC00<font color=red size=2>0</font>1' filter_value from dual union allThen:
with input_parameters as (
                          select 10 filter_key , '10ACCC' filter_value from dual union all
                          select 50 filter_key ,'10ACCC0001' filter_value from dual union all
                          select 60 filter_key , 'PIP' filter_value from dual union all
                          select 70 filter_key , 'A' filter_value from dual
        profile_search as(
                          select 100 profile_id , 10 filter_key , '10ACCC' filter_value from dual union all
                          select 100 profile_id , 50 filter_key , '10ACCC0001' filter_value from dual union all
                          select 100 profile_id , 50 filter_key , '10ACCC0002' filter_value from dual union all
                          select 100 profile_id , 60 filter_key , '999' filter_value from dual union all
                          select 100 profile_id , 70 filter_key , '999' filter_value from dual union all
                          select 101 profile_id , 10 filter_key , '10ACCC' filter_value from dual union all
                          select 101 profile_id , 50 filter_key , '10ACCC0001' filter_value from dual union all
                          select 101 profile_id , 60 filter_key , 'PIP' filter_value from dual union all
                          select 101 profile_id , 70 filter_key , '999' filter_value from dual union all
                          select 102 profile_id , 10 filter_key , '10ACCC' filter_value from dual union all
                          select 102 profile_id , 50 filter_key , '10ACCC0001' filter_value from dual union all
                          select 102 profile_id , 60 filter_key , 'PIP' filter_value from dual union all
                          select 102 profile_id , 70 filter_key , 'A' filter_value from dual
select  profile_id,
        sum(direct_match_cnt) || ' direct matches out of ' || (select count(*) from input_parameters) match
  from  (
         select  b.profile_id,
                 b.filter_key,
                 b.filter_value,
                 sum(case when b.filter_value = a.filter_value then 1 else 0 end) direct_match_cnt
           from  input_parameters a,
                 profile_search b
           where b.filter_key = a.filter_key
             and (b.filter_value = a.filter_value or b.filter_value = '999')
           group by b.profile_id,
                    b.filter_key,
                    b.filter_value
        ) x
  group by profile_id
  having count(*) = (select count(*) from input_parameters)
  order by sum(direct_match_cnt) desc
PROFILE_ID MATCH
       102 4 direct matches out of 4
       101 3 direct matches out of 4
       100 2 direct matches out of 4
SQL> SY.