Try doing the following immediately after execute(): 
my $names = $sth->{'NAME'};
  my $numFields = $sth->{'NUM_OF_FIELDS'};
  for (my $i = 0;  $i < $numFields;  $i++) {
      printf("%s%s", $$names[$i], $i ? "," : "");
  }

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NAME and NUM_OF_FIELDS are magic attributes of a statement handle that are supported by many DBDs.

In reply to Re: Getting Column Names from DBI? by dws
in thread Getting Column Names from DBI? by vivekvp

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