Try:
create or replace function is_number( parm in varchar2 )
return boolean
is
 x number;
begin
  x := to_number( parm );
  return true;
exception
  when value_error
  then
    return false;
end;

Kevin Kennedy
First Point Energy Corporation 

-----Original Message-----
Sent: Thursday, July 18, 2002 9:59 AM
To: Multiple recipients of list ORACLE-L


Hi List,

Is there any way that I can check to see if the value in a variable is a
number?

Example:

is_number('100') = TRUE
is_number('ABC') = FALSE




Hamid Alavi
Office 818 737-0526
Cell    818 402-1987






======================= Confidentiality Statement ======================= 
The information contained in this message and any attachments is 
intended only for the use of the individual or entity to which it is 
addressed, and may contain information that is PRIVILEGED, CONFIDENTIAL 
and exempt from disclosure under applicable law.  If you have received 
this message in error, you are prohibited from copying, distributing, or 
using the information.  Please contact the sender immediately by return 
e-mail and delete the original message from your system. 
===================== End Confidentiality Statement =====================  


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

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: kkennedy
  INET: [EMAIL PROTECTED]

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

Reply via email to