Re: Define NULL value in Perl

2008-07-14 Thread Jenda Krynicky
From: Rob Dixon <[EMAIL PROTECTED]> > Rob Coops wrote: > > > > *Randal wrote:* > > *Perl doesn't have NULL. That'd be like saying "how do I make this pig > > fly?". > > It's a nonsense question. > > * > > I think this is a little to easy, perl does have a value that indicates that > > a variable d

Re: Define NULL value in Perl

2008-07-14 Thread Rob Dixon
Rob Coops wrote: > > *Randal wrote:* > *Perl doesn't have NULL. That'd be like saying "how do I make this pig > fly?". > It's a nonsense question. > * > I think this is a little to easy, perl does have a value that indicates that > a variable does not have any set value it is called: undef > In m

Re: Define NULL value in Perl

2008-07-14 Thread Randal L. Schwartz
> "Rob" == Rob Coops <[EMAIL PROTECTED]> writes: Rob> I thik the thing that Randal was saying is that 'NULL' does not exist as a Rob> value in perl but he left out the part that others have pointed out before Rob> 'undef' has the same significance in perl as 'NULL' in other languages. But it

Re: Define NULL value in Perl

2008-07-14 Thread Rob Coops
*Randal wrote:* *Perl doesn't have NULL. That'd be like saying "how do I make this pig fly?". It's a nonsense question. * I think this is a little to easy, perl does have a value that indicates that a variable does not have any set value it is called: undef In many other langueages like Java, Vis

Re: Define NULL value in Perl

2008-07-12 Thread Randal L. Schwartz
> "luke" == luke devon <[EMAIL PROTECTED]> writes: luke> How can we define NULL values in perl ? for instance if I wanted to luke> assign a NULL value for a variable called "$x= , how would it be in the luke> code ? Perl doesn't have NULL. That'd be like saying "how do I make this pig fly?".

Re: Define NULL value in Perl

2008-07-09 Thread Brad Baxter
On Jul 9, 12:44 am, [EMAIL PROTECTED] (Luke Devon) wrote: > Hi > > How can we define NULL values in perl ? for instance if I wanted to assign a > NULL value for a variable called "$x= , how would it be in the code ? > > Thank you > Luke > > Send instant messages to your online friendshttp://uk.mes

Re: Define NULL value in Perl

2008-07-09 Thread Rob Dixon
yitzle wrote: > On Wed, Jul 9, 2008 at 2:30 AM, Thomas Bätzler <[EMAIL PROTECTED]> wrote: >> NULL is a SQL term. The Perl equivalent is undef, i.e. >> >> $x = undef; > > NULL is used far more widely than in just SQL; it is used in C/C++, > Java, Visual Basic and I'm sure many many more. But sin

Re: Define NULL value in Perl

2008-07-09 Thread Jorge Almeida
On Tue, 8 Jul 2008, luke devon wrote: Hi How can we define NULL values in perl ? for instance if I wanted to assign a NULL value for a variable called "$x= , how would it be in the code ? I never had a use for NULL outside C and I have no idea why you would want it. Still, I would guess that

Re: Define NULL value in Perl

2008-07-09 Thread yitzle
On Wed, Jul 9, 2008 at 2:30 AM, Thomas Bätzler <[EMAIL PROTECTED]> wrote: > NULL is a SQL term. The Perl equivalent is undef, i.e. > > $x = undef; NULL is used far more widely than in just SQL; it is used in C/C++, Java, Visual Basic and I'm sure many many more. -- To unsubscribe, e-mail: [EMAIL

RE: Define NULL value in Perl

2008-07-08 Thread Thomas Bätzler
luke devon <[EMAIL PROTECTED]> asked: > How can we define NULL values in perl ? for instance if I > wanted to assign a NULL value for a variable called "$x= , > how would it be in the code ? NULL is a SQL term. The Perl equivalent is undef, i.e. $x = undef; To check for definedness of a vari

Re: Define NULL value in Perl

2008-07-08 Thread yitzle
On Wed, Jul 9, 2008 at 12:44 AM, luke devon <[EMAIL PROTECTED]> wrote: > Hi > > How can we define NULL values in perl ? for instance if I wanted to assign a > NULL value for a variable called "$x= , how would it be in the code ? > > Thank you > Luke The closest Perl has to NULL is undef. Or maybe

Define NULL value in Perl

2008-07-08 Thread luke devon
Hi How can we define NULL values in perl ? for instance if I wanted to assign a NULL value for a variable called "$x= , how would it be in the code ? Thank you Luke Send instant messages to your online friends http://uk.messenger.yahoo.com