% my $sth = dbh->prepare(
% #"SELECT DISTINCT custnum FROM h_cust_main JOIN cust_main USING ( custnum )
% "SELECT custnum FROM h_cust_main JOIN cust_main USING ( custnum )
% my $sth = dbh->prepare(
% #"SELECT DISTINCT custnum FROM h_cust_main JOIN cust_main USING ( custnum )
% "SELECT custnum FROM h_cust_main JOIN cust_main USING ( custnum )