Store multiple results from one field in new columns in SQL - sql

Question

Current query returns 3 lines for one invoice if there are 3 denial codes and more if there are multiple denial codes and multiple denial dates. I am trying to create a column for each denial code so all results can be on one line. The requirements from the client is for each denial to be in its own column so I am unable to use the listagg function.
The results should looks like the below:
office, invoice, denial date, denial code 1, denial code 2, denial code 3, denial date2, denial code 1...etc
Oracle database. Current code:
SELECT
A.OFFICE_NBR,
A.INV_NBR,
TO_DATE(A.CRTD_DT,'MM/DD/YYYY') AS CARC_DT,
A.CLM_ID,
A.CLM_LN_ID,
A.RSN_CD
FROM DENIALS A
WHERE A.OFFICE_NBR = '1234'
AND A.INV_NBR = '123456'

Answer 1

I took a guess at some test data but this should get you going. Please add some before and after data, that helps a lot to understand what you are trying to do, and allows for building a more realistic solution.
Anyway the caveat is you have to define ahead of time a DENIAL_CD_X column for each possible denial code. I will be interested to see if someone can come up with a dynamic solution for the denial_cd columns.
SQL> with DENIALS(OFFICE_NBR, INV_NBR, CRTD_DT, RSN_CD) as (
2 select '11', '1111', '07/31/2015', '1' from dual
3 union
4 select '11', '1111', '07/31/2015', '99' from dual
5 union
6 select '11', '1111', '07/31/2015', '50' from dual
7 union
8 select '11', '1113', '06/01/2014', '34' from dual
9 union
10 select '11', '1113', '06/01/2014', '71' from dual
11 union
12 select '32', '3232', '06/21/2015', '34' from dual
13 union
14 select '32', '3232', '07/31/2015', '99' from dual
15 )
16 select OFFICE_NBR, INV_NBR, TO_DATE(CRTD_DT,'MM/DD/YYYY') AS CARC_DT,
17 DENIAL_CD_1, DENIAL_CD_2, DENIAL_CD_3
18 from
19 (
20 select OFFICE_NBR, INV_NBR, CRTD_DT, rsn_cd,
21 row_number() over(partition by OFFICE_NBR, INV_NBR, CRTD_DT order by OFFICE_NBR, INV_NBR, CRTD_DT, rsn_cd) rn
22 from DENIALS
23 )
24 pivot
25 (
26 max(rsn_cd)
27 for rn in ('1' as DENIAL_CD_1, '2' as DENIAL_CD_2, '3' as DENIAL_CD_3)
28 )
29 order by OFFICE_NBR, INV_NBR, CRTD_DT;
OFFICE_NBR INV_NBR CARC_DT DENIAL_CD_1 DENIAL_CD_2 DENIAL_CD_3
---------- ------- ---------- ----------- ----------- -----------
11 1111 31-JUL-15 1 50 99
11 1113 01-JUN-14 34 71
32 3232 21-JUN-15 34
32 3232 31-JUL-15 99
SQL>