If you want borders and headers and such, maybe look at some CPAN modules. I took a quick look and found Text::Table and Text::ASCIITable...there are probably others. Or maybe your needs are simple enough that perl's built in formats will do.

Update: I vaguely recall some module that was more directly DBI related...maybe some DBIx module?...anyway, I leave finding one if such exists up to the reader :-)