Trying to convert multiple rows into multipe columns within a single row

Question

I am trying to convert data from multiple rows into multiple columns. Let me see if I can paint the picture for you.
Here is a sample of the table i am trying to read from:
Company Name Account
1 Sam 123
1 Sam 234
1 Joe 345
1 Sue 789
1 Sue 987
1 Sue 573
I am trying to put this into a View that would have the data represented as such:
Company Name Acct1 Acct2 Acct3 Acct4
1 Sam 123 234 <null> <null>
1 Joe 345 <null> <null> <null>
1 Sue 789 987 573 <null>
Many thanks in advance for your help!

Answer 1

test@XE> --
test@XE> with t as (
  2    select 1 as company, 'Sam' as name, 123 as account from dual union all
  3    select 1, 'Sam', 234 from dual union all
  4    select 1, 'Joe', 345 from dual union all
  5    select 1, 'Sue', 789 from dual union all
  6    select 1, 'Sue', 987 from dual union all
  7    select 1, 'Sue', 573 from dual)
  8  --
  9  select company,
10         name,
11         max(case when rn = 1 then account else null end) as acct1,
12         max(case when rn = 2 then account else null end) as acct2,
13         max(case when rn = 3 then account else null end) as acct3,
14         max(case when rn = 4 then account else null end) as acct4
15    from (select company,
16                 name,
17                 account,
18                 row_number() over (partition by company, name order by 1) as rn
19            from t)
20   group by company, name;
   COMPANY NAM      ACCT1      ACCT2      ACCT3      ACCT4
         1 Joe        345
         1 Sam        234        123
         1 Sue        573        789        987
3 rows selected.
test@XE>
test@XE>isotope