Does anybody know why I get this error:

DBD::ODBC::st execute failed: [IBM][Client Access Express ODBC Driver 
+(32-bit)][DB2/400 SQL]Data truncated. (SQL-01004)(DBD: st_execute/SQL
+Execute err=-1) at a.pl line 33.
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with following code:

use Data::Dumper;
use DBI;
use strict;

my $dbh = DBI->connect('dbi:ODBC:MID', 'midadmin', '*******') or die "
+Nie moge sie polaczyc: $!" ;
=pod
$dbh->{LongTruncOk} = 1;
$dbh->{LongReadLen} = 1024;
DBI->trace(5);

=cut

my @kolumny = qw(
MIDDELETIONFLAG UMREN MEINH UMREZ LAENG BREIT NOEHE VOLUM VOLEH BRGEW 
+GEWEI MESUB SYSTEM_ID LEGACY_ID MAKT_MAKTX_PL MAS_IADSC DUP_CHK MAS_I
+APACS MARM_MEINS MAS_IANPAL
);


my @vals = ("S", "1", "PAL", "1152", "", "", "00337", "1200", "800", "
+972", "MM", "933120", "CM3", "313", "KG", "CS", "PLNCPL", "00337", "P
+LNCPL", "00337PAL", 
);

my $cols = join ', ', 'MIDID', @kolumny;
my $placeh = join ', ', map {'?'} 'MIDID', @kolumny;
my $statement = "INSERT into middbexp.marmtest ($cols) values ($placeh
+)";
print $statement, "\n";
my $sth = $dbh->prepare($statement);

print "\n\n";
$sth->bind_param(1, 2, 4);
for my $nrcol (1 .. $#kolumny + 1){
    print "$nrcol, $kolumny[$nrcol - 1], $vals[$nrcol - 1]\n";
    $sth->bind_param($nrcol + 1, $vals[$nrcol]);
}
my $rv = $sth->execute();
print "$rv\n";
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Setting the 'Longxxxxx' parameters did not help anything (anyway this is INSERT so this should not apply here). The debugging output:

INSERT into middbexp.marmtest (MIDID, MIDDELETIONFLAG, UMREN, MEINH, U
+MREZ, LAENG, BREIT, NOEHE, VOLUM, VOLEH, BRGEW, GEWEI, MESUB, SYSTEM_
+ID, LEGACY_ID, MAKT_MAKTX_PL, MAS_IADSC, DUP_CHK, MAS_IAPACS, MARM_ME
+INS, MAS_IANPAL) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?,
+ ?, ?, ?, ?, ?, ?)


1, MIDDELETIONFLAG, S
2, UMREN, 1
3, MEINH, PAL
4, UMREZ, 1152
5, LAENG, 
6, BREIT, 
7, NOEHE, 00337
8, VOLUM, 1200
9, VOLEH, 800
10, BRGEW, 972
11, GEWEI, MM
12, MESUB, 933120
13, SYSTEM_ID, CM3
14, LEGACY_ID, 313
15, MAKT_MAKTX_PL, KG
16, MAS_IADSC, CS
17, DUP_CHK, PLNCPL
18, MAS_IAPACS, 00337
19, MARM_MEINS, PLNCPL
20, MAS_IANPAL, 00337PAL
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