This script is an improved version of the code I posted here:

use strict;
use Text::CSV::Simple;
use DBI;
use DBD::SQLite;

#usage singlenyse.pl NYSE091806.csv 091806

my $filename = shift;
my $day= shift;

my $tmpfile = "nyse.tmp";
    open my $out, '>', $tmpfile
        or die "Couldn't open $tmpfile for writing: $!";


my $parser = Text::CSV::Simple->new();
$parser->want_fields(1, 2, 3, 4, 5, 8);

       my @data = $parser->read_file($filename);
       my $datalines = @data;
       for my $row(@data) {
    my @line = @$row;
        foreach my $row1(@line) {
        print {$out} $row1."\t";
        }
    print {$out} "\n";
    }
close $out
        or die "Couldn't close $tmpfile: $!";

#This section eliminates certain unwanted lines 

open(DATA, $tmpfile) || die("can't open $tmpfile: $!");

while (my $lines = <DATA> ) {
    chomp($lines);
    if (substr($lines,0,1) ne "\s") {
        if (substr($lines,0,4) ne "Symb") {
            if ( not $lines =~ m/\S/msx ) { 
                 next;
                 }
            print {$out} $lines."\n";
            }
        }
    }
close DATA;

#This inserts the extracted data into a SQLite database

my $datapath = "c:/sqlite3/nyse.db";
open(DATA, $tmpfile) || die("can't open $tmpfile: $!");

my $dbh = DBI->connect("dbi:SQLite:c:/sqlite3/nyse.db","",""); 
                    

my $sth = $dbh->prepare("INSERT INTO DATA(Symbol, Open,High, Low, Clos
+e, Volume, Date) VALUES 

(?, ?, ?, ?, ?, ?, ?)");

while(<DATA>) {
    
    chomp;
    my ($sym,$opn,$hi,$lo,$cls,$vol) = split /\t/;
    my $rc=$sth->execute($sym,$opn,$hi,$lo,$cls,$vol,$day);
  }
$sth->finish;

$dbh->disconnect;

close DATA;

unlink $tmpfile; #cleans up the temp file
[download]