Rob Dixon wrote:
> Beware, though, that you may also want to test
> for all-spaces in a field. Also some databases
> disallow zero-length string fields.
>
> HTH,
>
> Rob
I don't know about that. Usually I see this constraint as an option applied
to required fields when they are needed to maintai
Kevin Old wrote:
>
> On Mon, 2003-11-24 at 13:30, Eric Walker wrote:
> > How can I test for empty strings and nulls on a particular value. When
> > I get an empty string or a null value I need to do something.
>
> Hi Eric,
>
> To test for a empty string simply do the following:
>
> if ($mystring
Eric Walker wrote:
How can I test for empty strings and nulls on a particular value. When
I get an empty string or a null value I need to do something.
Thanks in Advance.
BassFool
# from a unix shell,
# empty string
perl -e '$s = "";unless ($s) {print "Empty string\n";}'
# null value
per
On Mon, 2003-11-24 at 13:30, Eric Walker wrote:
> How can I test for empty strings and nulls on a particular value. When
> I get an empty string or a null value I need to do something.
Hi Eric,
To test for a empty string simply do the following:
if ($mystring eq "") {
#string is empty
Eric Walker wrote:
>
> How can I test for empty strings and nulls on a particular value. When
> I get an empty string or a null value I need to do something.
Hi Eric.
I assume you're using the DBI module?
In general, a null value will be passed back as Perl 'undef' and
an empty string as, well
How can I test for empty strings and nulls on a particular value. When
I get an empty string or a null value I need to do something.
Thanks in Advance.
BassFool
