Oracle-L: Re: Function

From: <Jared.Still_at_radisys.com>
Date: Thu, 18 Jul 2002 14:06:31 -0800
Message-ID: <F001.0049C16C.20020718140631@fatcity.com>

Make Oracle do the work.

HTH Jared

create or replace function is_number( chk_data_in varchar2 ) return boolean
is

dummy number(38,4);
begin

        dummy := to_number(chk_data_in);
        return true;

exception
when value_error then

return false;
when others then

raise;
end;
/

show errors function is_number

declare

v_test varchar2(10) := '1E';
begin

        if is_number(v_test) then
                dbms_output.put_line(v_test || ' is a number');
        else
                dbms_output.put_line(v_test || ' is NOT a number');
        end if;

end;
/

Hamid Alavi <hamid.alavi_at_quovadx.com>
Sent by: root_at_fatcity.com
07/18/2002 09:58 AM
Please respond to ORACLE-L

        To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
        cc: 
        Subject:        Function

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

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Author: Hamid Alavi
INET: hamid.alavi_at_quovadx.com

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Author:
INET: Jared.Still_at_radisys.com

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