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  1. or download this
    $DSN= 'dbi:DriverName:database=$db;host=$host;port=$port;'
  2. or download this
    $sth = $dbh->do('SELECT whatever ...');
  3. or download this
    my $sql = 'SELECT whatever ...';
print "Statement: [$sql\n]";
$sth = $dbh->do($sql);
  4. or download this
    use Data::Dumper;
...
...
print Dumper $sql;
my $sth = $dbh->prepare($sql) or die "prepare failed: ', $DBI::errstr;
...