RE: Check for number only

Try
 TO_NUMBER(circ_num)
and exception INVALID_NUMBER

Jan Pruner

> -----Original Message-----
> From: Glenn Travis [mailto:c-glenn.travis_at_wcom.com]
> Sent: Friday, May 18, 2001 6:17 PM
> To: Multiple recipients of list ORACLE-L
> Subject: Check for number only
>
>
> I have a table with a column of varchar2(50) datatype. We
> are building a
> new table and the values in this column should all be
> numbers. I need to
> query the table to find all rows which have a value in this
> column which is
> not a valid number.
>
> Table:
> circuit (circ_id (primary_key) number, circ_num varchar2(50))
>
> Example: find all values in circ_num which are not numbers.
> how do I do something like 'select circ_id, circ_num from
> circuit where
> circ_num not valid to_number(circ_num)'
>
> Is there a function to check this?
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Glenn Travis
> INET: c-glenn.travis_at_wcom.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Pruner Jan
  INET: pruner_at_cekia.cz

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
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