app->attr(dbh => sub {

   my $self = shift;
   my $dsn  = 'dbi:Oracle:schema';
   my $usr  = 'Scott';
   my $pas  = 'tiger';
   my $dbh  = $DBI->connect_cached( $dsn, $usr, $pas );

   return $dbh;
}

# later

get '/query' => sub{

   my $c = shift;
   my $dbh = $c->app->dbh;
   my $sql = 'SQL QUERY HERE';
   my $sth = $dbh->pepare_cached( $sql );
   my $details = $dbh->selectall_arrayref( $sql, { Slice = {} });

  # and so on
};
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IN above example, I do prepare cached, but don't know how to call the cached query each time the route is visitied. 1. is my initial DBH setup optimal? 2. How do I make use of prepare_cached? Thanks