FreeTDS Development Group

[Jaye Mathisen <mrcpu AT internetcds.com>]

OK, clarification, apology, and much happiness.

I had just taken main.t, replaced the query for test 4 with my query, and
was trying that.  Hence I was hitting the defined $_ issue listed below.

Now it returns just what I expect, modulo that it's 0 instead of 0.0, but
I can work with that just fine.

So my apologies for the false alarm, it was and is working.


On Mon, 30 Aug 1999, Michael Peppler wrote:

> Brian Bruns writes:
>  > I saw this to, but I assumed it was the way main.t is written:
>  > 
>  >     while(@dat = $sth->fetchrow) {
>  >         ++$rows;
>  >         foreach (@dat) {
>  >             $_ = '' unless $_;
>  >         }
>  >         print "@dat\n";
>  >     }
>  > 
>  > The unless $_ thing knocks out 0 values.  If I comment out the foreach
>  > loop I get 0 returned (not 0.0 but hey close enough!)
> 
> Arrrrgggg!!!!!
> 
> That 
>       $_ = '' unless $_;
> is there to avoid warnings when accessing undefined variables/values
> (which is what DBD::Sybase returns for NULL values).
> 
> But of course this was for the Sybase sysusers table which does not
> have any float columns. So this row should be changed to
>       $_ = '' unless defined $_;
> 
> which I'll do in the DBD::Sybase source right now.
> 
> Michael
> 
>  > 
>  > So it is working for me is I guess what I'm saying.
>  > 
>  > Can you post your code?
>  > 
>  > Cheers,
>  > 
>  > Brian
>  > 
>  > On Sun, 29 Aug 1999, Jaye Mathisen wrote:
>  > 
>  > > 
>  > > nope, no difference.  floats with 0.0 as a value don't get converted in
>  > > DBD::Sybase.
>  > > 
>  > > If I change them to a value besides 0.0, it reports it back just fine.
>  > > 
>  > > ie, change taxrate to 1.1, and I get 1.1 out of DBD::Sybase, but 
> taxrate 2
>  > > which is 0.0 in the database returns nothing that I can see.
>  > > 
>  > > On Sat, 28 Aug 1999, Brian Bruns wrote:
>  > > 
>  > > > 
>  > > > Jaye,
>  > > > 
>  > > > Try the stuff in CVS now.  I made one small change and hopefully 
> it'll
>  > > > work.
>  > > > 
>  > > > Brian
>  > > > 
>  > > > On Thu, 26 Aug 1999, Jaye Mathisen wrote:
>  > > > 
>  > > > > 
>  > > > > 
>  > > > > OK, with sqsh-1.7, my query is now returning great info.  
> timestamp field
>  > > > > came through OK, and the floats are correct.
>  > > > > 
>  > > > > DBD::Sybase doesn't like the floats though. Everything else 
> including the
>  > > > > timestamp came through, but I'm not so sure where the problem is, 
> if it's
>  > > > > still in the ctlib stuff, or really in DBD::Sybase.
>  > > > > 
>  > > > > Note the portion of the trace:
>  > > > > 
>  > > > >     <- FETCH= [ 'id' 'name' 'guarantor' 'taxrate' 'taxrate2' 'date'
>  > > > > 'active' 'taxid' 'staffnum' 'timestamp' 'attn' 'addr1' 'addr2' '
>  > > > > [...]
>  > > > >     -> FETCH for DBD::Sybase::st (DBI::st=HASH(0x8145e7c)~INNER 
> 'NAME')
>  > > > >     -> FETCH for DBD::Sybase::st (DBI::st=HASH(0x8145e7c)~INNER 
>  > > > > 'NULLABLE')
>  > > > >     <- FETCH= [ '' 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
> 1 1 1 1
>  > > > > 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ] at x.pl line 44.
>  > > > >     -> fetchrow for DBD::Sybase::st 
> (DBI::st=HASH(0x8057890)~0x8145e7c)
>  > > > >     <- fetchrow= ( 10196 'Jaye Mathisen' 0 0 0 'Feb 05 1998 
> 12:00AM' 'Y'
>  > > > > [stuff deleted]
>  > > > > 
>  > > > > In the row data, the three fields after "Jaye Mathisen" has 0 0 0.
>  > > > > 
>  > > > > The first 0 is an int field, and it's correct.  But the next 2 
> fields are
>  > > > > both floats.  I am unsure if the 0 there as opposed to 0.0 or 
> somesuch is
>  > > > > related to the problem.
>  > > > > 
>  > > > > I'm using DBI-1.13, with DBD::Sybase-0.19...  I think if I had my 
> floats
>  > > > > in DBD::Sybase, I'd be off to the races. :)
>  > > > > 
>  > > > > On Thu, 26 Aug 1999, Brian Bruns wrote:
>  > > > > 
>  > > > > > 
>  > > > > > Ok, I've checked in the varbinary conversion stuff.  There 
> shouldn't be
>  > > > > > anymore of the 'Attempting to convert unknown source type xx' 
> messages. If
>  > > > > > you see any, let me know any I can patch it up in pretty short 
> order.
>  > > > > > 
>  > > > > > You guys have been really great with the problem reports.  It 
> makes my
>  > > > > > life alot easier. :) 
>  > > > > > 
>  > > > > > Well I'm off to bed, g'night everyone
>  > > > > > 
>  > > > > > Brian
>  > > > > > 
>  > > > > > By the way, if anybody is looking for an easy task to sink their 
> teeth
>  > > > > > into, there is a lot of relatively easy but monotonous work to 
> do in the
>  > > > > > convert functions to go from one datatype to the others.  It's 
> all in
>  > > > > > src/tds/convert.c and the code should be pretty easy to follow.
>  > > > > > 
>  > > > > > 
>  > > > > > 
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> -- 
> Michael Peppler         -||-  Data Migrations Inc.
> mpeppler AT peppler.org    -||-  http://www.mbay.net/~mpeppler
> Int. Sybase User Group  -||-  http://www.isug.com
> Sybase on Linux mailing list: ase-linux-list AT isug.com
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