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Home > Forums > Programmers > DBMS Packages > Oracle: Oracle release - 9i and earlier Forum

Call Decode Result In a Function

Read More Threads Like This One

getjbb (MIS)

27 Feb 12 18:33

I am during a select with a couple of decodes included. How can I use the result (tr.trans_type) from the first decode in function call (SUBSTANCES.get_desc) in the second decode statement.

SELECT TRANS_NUM,
          sub.ACCOUNT,
          TRANS_DATE,
          DECODE( (trans_num is null AND tr.trans_type=6 AND item_code='C'),  THEN 19
                ELSE tr.trans_type
         END) tr.trans_type,
          DECODE (
             show_first_desc,
             'Y',    description
                  || '  '
                  || SUBSTANCES.get_desc (trans_num, tr.trans_type),
             DECODE (show_second, 'Y', description, NULL))
             description
from transactions tr, substance sub
where transactions.account = substance.account;

getjbb

SantaMufasa (TechnicalUser)

27 Feb 12 19:23

Getjbb,

There were a couple of syntax issues in your original code, and I've aligned the corrected code so that you are able to read it a bit better.

Regarding your question about how to refer to the results of the original DECODE: simply re-state that DECODE where you need it (as I have done, below):

CODE

SELECT TRANS_NUM
      ,sub.ACCOUNT
      ,TRANS_DATE
      ,DECODE(trans_num||tr.trans_type||item_code
             ,'6C',19
             ,tr.trans_type) trans_type
      ,DECODE (show_first_desc
              ,'Y',description||'  '||
                   SUBSTANCES.get_desc(trans_num
                                      ,DECODE(trans_num||tr.trans_type||item_code
                                             ,'6C',19
                                             ,tr.trans_type
                                             )
                                      )
              ,DECODE (show_second
                      ,'Y',description
                      ,NULL
                      )
              ) description
  from transactions tr, substance sub
where tr.account = sub.account;

Let us know if this resolves your need.

santa Mufasa
(aka Dave of Sandy, Utah, USA)
"People may forget what you say, but they will never forget how you made them feel."

getjbb (MIS)

27 Feb 12 20:49

SantaMufasa,

Thank you. This is what I needed.

getjbb

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