DECODE query help

Question

SELECT * FROM MYTABLE IS:
DOC_ID          STATUS  PKG     NOS     AMOUNT
IN1439324     GEN     BX     5     513
IN1439324     GEN     CT     2     756
IN1439324     EXP     BX     1     770
IN1439324     EXP     CT     1     1134
IN1439999     GEN     CT     2     956
IN1439999     EXP     BX     1     1270i want a query to show the summery as below
          GEN_BX |GEN_CT |EXP_BX |EXP_BX |GENAMT_BX |GENAMT_CT |EXPAMT_BX |EXPAMT_CT
IN1439324    5   |   2   |   1   |   1   |   513    |   756    |   770    | 1134
IN1439999        |   2   |   4   |       |          |   956    |  1270    | Edited by: RamiahRAGU on Oct 30, 2008 12:37 PM

Answer 1

This is a classic pivot query.
In 10g or below you would do something like...
SQL> ed
Wrote file afiedt.buf
  1  with t as (select 'IN1439324' as doc_id, 'GEN' as status, 'BX' as pkg, 5 as nos, 513 as amount from dual union all
  2             select 'IN1439324', 'GEN', 'CT', 2, 756 from dual union all
  3             select 'IN1439324', 'EXP', 'BX', 1, 770 from dual union all
  4             select 'IN1439324', 'EXP', 'CT', 1, 1134 from dual union all
  5             select 'IN1439999', 'GEN', 'CT', 2, 956 from dual union all
  6             select 'IN1439999', 'EXP', 'BX', 1, 1270 from dual)
  7  --
  8  select doc_id
  9        ,max(case when status='GEN' and pkg='BX' then nos else null end) as gen_bx
10        ,max(case when status='GEN' and pkg='CT' then nos else null end) as gen_ct
11        ,max(case when status='EXP' and pkg='BX' then nos else null end) as exp_bx
12        ,max(case when status='EXP' and pkg='CT' then nos else null end) as exp_ct
13        ,max(case when status='GEN' and pkg='BX' then amount else null end) as genamt_bx
14        ,max(case when status='GEN' and pkg='CT' then amount else null end) as genamt_ct
15        ,max(case when status='EXP' and pkg='BX' then amount else null end) as expamt_bx
16        ,max(case when status='EXP' and pkg='CT' then amount else null end) as expamt_ct
17  from t
18  group by doc_id
19* order by 1
SQL> /
DOC_ID        GEN_BX     GEN_CT     EXP_BX     EXP_CT  GENAMT_BX  GENAMT_CT  EXPAMT_BX  EXPAMT_CT
IN1439324          5          2          1          1        513        756        770       1134
IN1439999                     2          1                              956       1270
SQL>In 11g you can look at the new PIVOT keyword.