my ($storage, $dbh, $self) = @_;
$self->_check_dbh_gen;
- $self->sth->finish if $self->sth->{Active};
+ $self->sth->finish if $self->sth && $self->sth->{Active};
$self->sth(undef);
my ($rv, $sth) = $storage->_select(@{$self->{args}});
return @{$sth->fetchall_arrayref};