Create function with a cursor in it

Question

I need help to create a function called f_Getfeedesc. I want to use a cursor for Loop. The function will return fees description for any folder.
If a folder has more than one fee description, it will concatenate the fees description.
The select statement I have here returns the following fees description:
CO Residential 3+ Units No Entry Penalty Fee
C of O Initial Fee
CO Residential 3+ Units Initial Fee
However when the function is done if you run it using the folderrsn 99999 the result should look like this:
CO Residential 3+ Units No Entry Penalty Fee / C of O Initial Fee / CO Residential 3+ Units Initial Fee
If the folderrsn has only one fee description the result should just return that one fee description. e.g CO Residential 3+ Units No Entry Penalty Fee
I am using the following tables:
folder table with FOLDERRSN......... NOT NULL  NUMBER(10,0) column.
accountbillfee table with FEECODE..........NOT NULL  NUMBER(10,0) column.
validaccountfee table with FEECODE........NOT NULL  NUMBER(10,0) and FEEDESC............NOT NULL  VARCHAR2(80) columns.
SELECT DISTINCT vaf.feedesc
FROM folder f, accountbillfee abf, validaccountfee vaf
WHERE f.folderrsn = abf.folderrsn
AND vaf.feecode = abf.feecode
--And f.folderrsn = argfolderrsn
AND f.folderrsn = 99999 --for a specific folderrsn
Edited by: user4653174 on Sep 12, 2008 1:31 PM

Answer 1

Hi,
What you're trying to do is called "string aggregation".
There's an excellent page on AskTom with several general solutions.
I recommend the first one, STRAGG.
Once you have STRAGG installed, you can get the output you want as simply as this:
SELECT    feecode
,         STRAGG (feedesc)
FROM      validaccountfee
GROUP BY  feecode;Edited by: Frank Kulash on Sep 13, 2008 2:56 AM