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    <p>A significant part of your formatting code is hidden in <code>pad2str</code>. The problem seems to be how you handle 22 columns with 26 field definitions. My guess is that it is not handling the four non-existent columns at the end. </p> <p>In the particular case you gave, your fields add up to a length of 254. However, you seem to be adding <em>both</em> a 2-character <code>$tblnr</code> value at the beginning <em>and</em> <code>'--'</code> at the end! So do you need 256 or 256 + 2 ('--') for record length? </p> <p>Also in a given length of the large while loop, <code>@AoA[0][1]</code> is <em>constant</em>, why are you evaluating it 26<code>x</code>5 times? That's bad code in PHP or Perl. </p> <ul> <li>Fix pad2str (which you probably don't even need.)</li> <li>Decide whether you want <code>$tblnr</code> at the beginning or '--' at the end--or decide what your record length should be.</li> <li><p>And regard the code transformation below:</p> <pre><code>use List::MoreUtils qw&lt;pairwise&gt;; # push behavior into statement handles... { package DBI::st; sub get_rows { my $sth = shift; my @results; $sth-&gt;execute( @_ ); while ( my @row = $sth-&gt;fetchrow_array ) { push @results, \@row; } $sth-&gt;close; return @results; } } my %needs_adjustment = qw&lt;F0101 1 F6115 1&gt;; $expsel-&gt;bind_columns( \$tabelnaam, \$huidige, \$id); while( $expsel-&gt;fetch()) { $tbl = substr( $tabelnaam, 0, 4 ); $tblnr = substr( $tabelnaam, 2, 2 ); my ( $first_col ) = @AoA = $dbh-&gt;prepare( qq/ SELECT * FROM tblExportspecificatie WHERE tabelnaam = '$tbl' ORDER BY id / )-&gt;get_rows ; my $adjust_first = $needs_adjustment{ $first_col-&gt;[1] }; $first_col-&gt;[2] = 8 if $adjust_first; ( $sth = $dba-&gt;prepare("SELECT * FROM $tbl LIMIT 5"))-&gt;execute; while ( my $row = $sth-&gt;fetchrow_arrayref ) { print $fh $tblnr , ( $adjust_first ? pad2str( 4, 0, $gemeentecode ) : '' ) , ( pairwise { pad2str( @$a[2,3], $b ) } @AoA, @$row ) , chr(10) ; } print $fh chr(10); } </code></pre></li> <li><p>You <em>don't</em> want <code>printf</code>, unless you're going to supply a <em>format specifier</em>--which you do not seem to do.</p></li> </ul>
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    1. COWow, thankyou very much! I got it working now :)
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