Update duplicate records in pl/sql with each different name

Question

this is my table newemp
  EMPNO ENAME      JOB
   7000 ELLISON    OWNER
   7369 SMITH      CLERK
   7499 ALLEN      SALESMAN
   7521 WARD       SALESMAN
   7566 JONES      MANAGER
   7654 MARTIN     SALESMAN
   7698 BLAKE      MANAGER
   7782 CLARK      MANAGER
   7788 SCOTT      ANALYST
   7839 KING       PRESIDENT
   7844 TURNER     SALESMAN
  EMPNO ENAME      JOB
   7876 ADAMS      CLERK
   7900 JAMES      CLERK
   7902 FORD       ANALYST
   7934 MILLER     CLERKI WANT TO UPDATE ALL THOSE REPEATING JOBS
E.G IF THERE ARE FOUR SALESMAN IT SHOULD BE LIKE DIS SALE4,SALE5,SALE6,SALE7,SALE8. AND 2 ANALYST = ANA2,ANA3
AND IF THE RECORD IS ONLY ONCE THN NO CHANGE.
I DID THIS BY USING STORED PROCEDURE FOR EACH DISTINCT SALE BUT I WANT TO DO IN A SINGLE PROCEDURE
THE STORED PROCEDURE THAT I HAVE DEVELOPED ID LIKE THIS:-
create or replace procedure sp_duptest
is
x number(20);
y number(3);
j Number := 0;
cursor z is select empno from  newemp where job = 'CLERK';
begin
select empno
    into x
  from newemp where job = 'CLERK' ;
exception
when no_data_found then
null;
when too_many_rows then
begin
select count(job) into y from newemp where  job='CLERK';
y := y-1;
for i in z
loop
y := y+ 1;
if y>1 then
update newemp
    set job = 'CLE'||y
    where empno = i.empno;
else
update newemp set job ='clerk';
end loop;
commit;
end;
end;Edited by: BluShadow on 02-Aug-2011 10:48
added {noformat}{noformat} tags.  Please read {message:id=9360002} to learn to do this yourself.
Edited by: Aviral on Aug 2, 2011 2:50 AM                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

Answer 1

Something like this perhaps?
SQL> create table emp2 as select * from emp;
Table created.
SQL> ed
Wrote file afiedt.buf
  1  update emp2 set job = (select job
  2                         from (select empno
  3                                     ,substr(job,1,5)||to_char(row_number() over (partition by job order by empno),'fm09') as job
  4                               from emp2) t
  5*                        where t.empno = emp2.empno)
SQL> /
14 rows updated.
SQL> select * from emp2;
     EMPNO ENAME      JOB              MGR HIREDATE                    SAL       COMM     DEPTNO
      7369 SMITH      CLERK01         7902 17-DEC-1980 00:00:00        800                    20
      7499 ALLEN      SALES01         7698 20-FEB-1981 00:00:00       1600        300         30
      7521 WARD       SALES02         7698 22-FEB-1981 00:00:00       1250        500         30
      7566 JONES      MANAG01         7839 02-APR-1981 00:00:00       2975                    20
      7654 MARTIN     SALES03         7698 28-SEP-1981 00:00:00       1250       1400         30
      7698 BLAKE      MANAG02         7839 01-MAY-1981 00:00:00       2850                    30
      7782 CLARK      MANAG03         7839 09-JUN-1981 00:00:00       2450                    10
      7788 SCOTT      ANALY01         7566 19-APR-1987 00:00:00       3000                    20
      7839 KING       PRESI01              17-NOV-1981 00:00:00       5000                    10
      7844 TURNER     SALES04         7698 08-SEP-1981 00:00:00       1500          0         30
      7876 ADAMS      CLERK02         7788 23-MAY-1987 00:00:00       1100                    20
      7900 JAMES      CLERK03         7698 03-DEC-1981 00:00:00        950                    30
      7902 FORD       ANALY02         7566 03-DEC-1981 00:00:00       3000                    20
      7934 MILLER     CLERK04         7782 23-JAN-1982 00:00:00       1300                    10
14 rows selected.
SQL>