ROW_NUMBER Kulanımı Örnek, Bir fatura bazında, fatura detaylarına sıra numarası verilmesi

select (mod(emp_id,5)-emp_id)*-1 page, seq_no,tutar FROM (
SELECT seq_no, tutar, ROW_NUMBER()
   OVER (PARTITION BY seq_no ORDER BY seq_no) AS emp_id
   FROM ser_hiz_det
   where seq_no in ('680501','81127')
   )
   ORDER BY seq_no

SELECT department_id, last_name, employee_id, ROW_NUMBER()
   OVER (PARTITION BY department_id ORDER BY employee_id) AS emp_id
   FROM employees;

DEPARTMENT_ID LAST_NAME                 EMPLOYEE_ID     EMP_ID
------------- ------------------------- ----------- ----------
           10 Whalen                            200          1
           20 Hartstein                         201          1
           20 Fay                               202          2
           30 Raphaely                          114          1
           30 Khoo                              115          2
           30 Baida                             116          3
           30 Tobias                            117          4
           30 Himuro                            118          5
           30 Colmenares                        119          6
           40 Mavris                            203          1
. . .
          100 Popp                              113          6
          110 Higgins                           205          1
          110 Gietz                             206          2