I can see some problems in your code.

First, you're using single quotes in the Data param, wich is going to insert you the literal text "&sql".

You're also printing what you want your function to return, not returning it. Maybe something like that (untested):

sub sql {
  my @output = $sqlCount->execute;
  my @data;
  while (@output=$sqlCount->fetchrow_array) {
    push @data, @output;
  }
  $sqlCount->finish();
  $dbcon->disconnect();
  return \@data
}
[download]

And, in the Data field:

my $data = join "\n", @{ +sql() };
...
Data => $data
...
[download]