How can i write the query for the below output

Question

Hi,
I need this kind of output for my report.Please suggest me asap.It's urgent.
Item Description category subinvcode A B C D....................(All Subinventories)
1 AAAA FFF 5 8 (Quantity Values for the corresponding subinventories)
Plz help.

Answer 1

I still don't have a clue what you're going on about, but here's an example of pivoting that I've knocked up based on your scatty bit of data which may give some hint to you as to what to do....
SQL> create table inventory as
  2  select 1 as item_id, '0016K8731' as item_desc from dual union
  3  select 2, '0014R0181' from dual;
Table created.
SQL>
SQL> create table sub_inventory as
  2  select 1 as item_id, 'FG_IBM' as sub_item_id, 5 as quantity from dual union
  3  select 1, 'FG_HUN', 4 from dual union
  4  select 1, 'FG_PSA', 12 from dual union
  5  select 2, 'FG_IBM', 1 from dual union
  6  select 2, 'FG_HUN', 17 from dual union
  7  select 2, 'FG_PSA', 3 from dual;
Table created.
SQL>
SQL> select item_desc, max(fg_ibm) as fg_ibm, max(fg_hun) as fg_hun, max(fg_psa) as fg_psa
  2  from (
  3    select i.item_desc,
  4           decode(s.sub_item_id, 'FG_IBM', quantity, null) as fg_ibm,
  5           decode(s.sub_item_id, 'FG_HUN', quantity, null) as fg_hun,
  6           decode(s.sub_item_id, 'FG_PSA', quantity, null) as fg_psa
  7    from inventory i, sub_inventory s
  8    where s.item_id = i.item_id
  9    )
10  group by item_desc
11  /
ITEM_DESC     FG_IBM     FG_HUN     FG_PSA
0014R0181          1         17          3
0016K8731          5          4         12
SQL>