Since Limbic~Region's excellent response mentions DBD::CSV but then gives an example that doesn't use it, here's an example that does use it:

#!/usr/bin/perl
use warnings;
use strict;
use DBI;
my $dbh = DBI->connect(
    'dbi:CSV:', undef, undef, {RaiseError=>1,PrintError=>0}
);
$dbh->csv_tables->{Log} = { file => 'yourfile.csv' };
my( $oms_cpu_total ) = $dbh->selectrow_array("
    SELECT SUM(cpu_minutes) FROM Log WHERE application = ?
",{},'OMS');
printf "Application %s used %d CPU minutes\n",
      'OMS',$oms_cpu_time;
__END__
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Note : you will need to change the column headings to be valid SQL column names. The easiest way is to just change spaces to underscorse, e.g. "cpu_minutes".