[freetds] Null values in result record are overwrittenwithprevious non-null data when using a prepared query morethan once

Buurman, H.A. (Herbert) h.a.buurman at interlogica.nl
Thu Jun 18 09:17:33 EDT 2009


> -----Original Message-----
> From: freetds-bounces at lists.ibiblio.org
> [mailto:freetds-bounces at lists.ibiblio.org]On Behalf Of Frediano Ziglio
> Sent: Thursday, 18 June, 2009 15:11
> To: FreeTDS Development Group
> Subject: Re: [freetds] Null values in result record are
> overwrittenwithprevious non-null data when using a prepared query
> morethan once
> 
> 
> Could you try with a sequence growing and shrinking like
> 
> Value => 1, Identifier => 1,
> Value => 23, Identifier => 2,
> Value => 456, Identifier => 3,
> Value => 78, Identifier => 4,
> Value => 9, Identifier => 5,
> 

With only modifying the @Identifiers-line to
my @Identifiers = ('1', '2', '3', '4', '5');
and filling the table with the above mentioned data, the output
is as follows:

Value => 1, Identifier => 1,
Value => 23, Identifier => 2,
Value => 456, Identifier => 3,
Value => 78, Identifier => 4,
Value => 9, Identifier => 5,

Which looks just fine. Guess which value I then Null'ed? :-)

Value => 1, Identifier => 1,
Value => 23, Identifier => 2,
Value => 456, Identifier => 3,
Value => 456, Identifier => 4,
Value => 9, Identifier => 5,

Kind regards,
H. Buurman

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