I have a hunch that I'll continue to use perl for a while. I don't know why,
but I just feel that way.
--
Mladen Gogala
Oracle DBA
-----Original Message-----
Jared.Still_at_radisys.com
Sent: Tuesday, September 23, 2003 1:40 PM
To: Multiple recipients of list ORACLE-L
Or, how about: http://www.oreilly.com/catalog/oracleregexpr/
Mladen Gogala <mgogala_at_adelphia.net>
Sent by: ml-errors_at_fatcity.com
09/22/2003 06:44 PM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L
<ORACLE-L_at_fatcity.com>
cc:
Subject: Re: Isnumeric question
Here is a good impossible solution which can be used
to make this list drool:
http://technet.oracle.com/oramag/webcolumns/2003/techarticles/rischert_regex
p_pt1.html
On 2003.09.22 21:24, Jacques Kilchoer wrote:
> >-----Original Message-----
> >From: ml-errors_at_fatcity.com [mailto:ml-errors_at_fatcity.com]On Behalf Of
> Teresita Castro
> >
> >I want to made something like this ina query
> >
> >select decode( isnumeric(line_comment), to_number(line_comment),0)
> >
> >how can I do this in Oracle?
>
> First you need to define what "isnumeric" means to you.
> Does it mean
> a) this string only contains ASCII characters 0 through 9
> b) this string only contains ASCII characters 0 through 9 with maybe one
> decimal point (as determined by my NLS settings)'
> c) this string only contains ASCII characters 0 through 9 with maybe one
> decimal point and group separators (as determined by my NLS settings)
> d) 'this string contains a valid ORACLE number constant' e.g. -2.3e+10 is
a
> valid number?
> e) something else (minus signs, etc.)
>
> If the answer is d), then (from an old idea by Jared Still) create your
own
> function
> create function is_number (str in varchar2)
> return number
> is
> x number ;
> begin
> x := to_number (str) ;
> return 1 ;
> exception
> when value_error
> then
> return 0 ;
> when others
> then
> raise ;
> end ;
> /
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Jacques Kilchoer
> INET: Jacques.Kilchoer_at_quest.com
>
> Fat City Network Services -- 858-538-5051 http://www.fatcity.com
> San Diego, California -- Mailing list and web hosting services
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> also send the HELP command for other information (like subscribing).
>
--
Mladen Gogala
Oracle DBA
--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Mladen Gogala
INET: mgogala_at_adelphia.net
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Received on Tue Sep 23 2003 - 14:54:47 CDT
