my $servicenum = $class->condition_sql_option('has_service');
my $sql = qq| 0 < ( SELECT COUNT(cs.svcpart)
FROM cust_bill_pkg cbp, cust_svc cs
WHERE cbp.invnum = cust_bill.invnum
AND cs.pkgnum = cbp.pkgnum
my $servicenum = $class->condition_sql_option('has_service');
my $sql = qq| 0 < ( SELECT COUNT(cs.svcpart)
FROM cust_bill_pkg cbp, cust_svc cs
WHERE cbp.invnum = cust_bill.invnum
AND cs.pkgnum = cbp.pkgnum