Class method which returns an SQL WHERE fragment to search for parameters
specified in HASHREF. Accepts the following parameters for
L<FS::cust_bill::search_sql_where>: C<_date>, C<invnum_min>, C<invnum_max>,
Class method which returns an SQL WHERE fragment to search for parameters
specified in HASHREF. Accepts the following parameters for
L<FS::cust_bill::search_sql_where>: C<_date>, C<invnum_min>, C<invnum_max>,