Can't get the result if I use SUBSTR From the resultSet

Question

Hi,
I have a request that make some changes on a String data.
This modification is an extraction of a sub string with SUBSTR function of oracle.
The problem is that I can to get the result on my java code
               pst = connect.prepareStatement(GET_PATH);
               rset = pst.executeQuery();
          while (rset.next()) {
               String chemin = rset.getString("IMG_PATH"); // rset.getString(2);
               system.out.println("Le chemin récuperé de la base est : " + chemin);
               chemins.add(chemin);
          }this is the request :
SELECT DISTINCT nl.img_id, SUBSTR(ni.img_chemin, 1, INSTR(ni.img_chemin, '\', -1)) IMG_CHEMIN from images nlThe oracle documentation say the SUBSTR function return a STRING type.
Thnaks for your help. (And sorry for my little english)
Technical Information :
DB : ORACLE
DRIVER VERSION : ojdbc14-10.2.0.3.0.jar (tested with version 9 same thing)
Java 6 update 3
Edited by: Aberghouss on 29 août 2008 17:11

Answer 1

Aberghouss wrote:
Hi,
I change the INSTR(ni.img_chemin, '\', -1) by number 20 and the program get correctelly the value
SELECT DISTINCT nl.img_id, SUBSTR(ni.img_chemin, 1, 20) IMG_CHEMIN from images nlNow have you any idea how can I resolve this problem with INSTRLittle confusing what you are actually doing.
You need to post code that actually has the problem.
Given that you are using names, rather than indexes, usually the problem is that the name doesn't match what is actually in the meta data. Try printing the meta data. And try using indexes just to verify that there is in fact a result (which would be another reason for not getting it.)