Previously posted by Jared is the is_number function below:
You could avoid the decode statement and have the exception return zero for a
non-numeric parameter - of course you'd want to rename the function to something more
meaningful in that case.
"
-----Original Message-----
Sent: Saturday, 1 February 2003 8:05 AM
To: Multiple recipients of list ORACLE-L
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;
/
"
HTH,
Bruce Reardon
-----Original Message-----
Sent: Tuesday, 23 September 2003 11:00 AM
On 2003.09.22 20:15, Teresita Castro wrote:
> Hi!!
> 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?
>
my $line_comment;
my $sth=$dbh->prepare("Select line_comment from....");
$sth->execute();
$sth->bind_col(1,\$line_comment);
while ($sth->fetchrow_array() {
if ( $line_comment =~ /^[0-9]+/) {......}
}
--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Reardon, Bruce (CALBBAY)
INET: [EMAIL PROTECTED]
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