Doh!  Forgot about the extra parameters to instr (like the negative value
for where to start searching!).  Thanks anyway and sorry about the wasted
bandwith.  For those interested, here's the answer;

select '/dir1/dir2/test/file.out' filenm,
substr('/dir1/dir2/test/file.out',
instr('/dir1/dir2/test/file.out','/',-1),length('/dir1/dir2/test/file.out'))
shortnm
from dual;

FILENM                   SHORTNM
------------------------ --------
/dir1/dir2/test/file.out file.out


> -----Original Message-----
> From: Glenn Travis [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, May 01, 2001 3:33 PM
> To: Oracle MailList LazyDBA
> Subject: SQL question
>
>
> How would you take the same string "/dir1/dir2/test/file.out",
> and return "file.out".  Assume you do not know where the last '/'
> is or how many there are.  What I need is a reverse instr
> function.  Find the last occurrance of '/', not the first.
>
> Can it be done in sqlplus???
>

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Glenn Travis
  INET: [EMAIL PROTECTED]

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