Small data aggregation question

Question

Starting with this data:
select * from things
NAME                 TYPE                 THING               
dave                 item                 can                 
mike                 item                 box                 
mike                 consumer elec        television          
mike                 consumer elec        radio               
mike                 automobile           volvo               
ryan                 automobile           saab                
ryan                 automobile           chevrolet           
mike                 automobile           volvo               
mike                 automobile           volvo               
mike                 automobile           volvo               
mike                 consumer elec        radio               
mike                 consumer elec        radio               
mike                 consumer elec        radio               
13 rows selectedI have successfully constructed this query, which almost gets me where I want to be:
    select  name,
            ltrim(max(sys_connect_by_path(thing,','))
            keep(dense_rank last order by curr),',') as things
      from  (select
               name,
               thing,
               row_number() over (partition by name order by thing) as curr,
               row_number() over (partition by name order by thing) -1 as prev
             from things)
  group by  name
connect by  prev = prior curr
       and  name = prior name
start with  curr = 1;
NAME                 THINGS                                                       
dave                 can                                                          
mike                 box,radio,radio,radio,radio,television,volvo,volvo,volvo,volvo
ryan                 chevrolet,saab                                               
3 rows selectedwhat I want (hope for, rather) is this:
NAME                 THINGS                                                       
dave                 can                                                          
mike                 box,radio(4),television,volvo(4)
ryan                 chevrolet,saab                                                Can anyone give me some clues to help me get what I want?
Thanks!

Answer 1

Just aggregate your data:
SQL> with things as(
  2  select 'dave' name,'item' type,'can' thing from dual union all
  3  select 'mike','item','box' from dual union all
  4  select 'mike','consumer elec','television' from dual union all
  5  select 'mike','consumer elec','radio' from dual union all
  6  select 'mike','automobile','volvo' from dual union all
  7  select 'ryan','automobile','saab' from dual union all
  8  select 'ryan','automobile','chevrolet' from dual union all
  9  select 'mike','automobile','volvo' from dual union all
10  select 'mike','automobile','volvo' from dual union all
11  select 'mike','automobile','volvo' from dual union all
12  select 'mike','consumer elec','radio' from dual union all
13  select 'mike','consumer elec','radio' from dual union all
14  select 'mike','consumer elec','radio' from dual)
15  -- Test data
16  select     name,
17                                  ltrim(max(sys_connect_by_path(thing||decode(cnt,1,null,'('||cnt||')'),','))
18                                  keep(dense_rank last order by curr),',') as things
19          from  (select
20                                           name,
21                                           thing,
22                                           count(*) cnt,
23                                           row_number() over (partition by name order by thing) as curr,
24                                           row_number() over (partition by name order by thing) -1 as prev
25                                   from things group by name,type,thing)
26  group by  name
27  connect by  prev = prior curr
28         and  name = prior name
29  start with  curr = 1
30  /
NAME            THINGS
dave            can
mike            box,radio(4),television,volvo(4)
ryan            chevrolet,saabBest regards
Maxim