Issue with calling custom function in merge command -10g

Question

Hi,
I have ran into issue while calling a custom function in merge command.
It throws error 'Invalid identifier'. Oracle doesnt understand that it is a function and take the function name as column name.
Since no such collumn name exists, it throws 'Invalid identifier'.
Interestingly, merge command works fine when it has a oracle function (replace, decode).
The oracle version is 10.2.0.3
It is very urgent.
Any pointers will be helpful.
Regards,
Ravi

Answer 1

I don't have privileges to create dblink, but this is working for me.
So, i don't think function can be a issue here.
satyaki>
satyaki>select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
Elapsed: 00:00:01.02
satyaki>
satyaki>
satyaki>create table hist_tab
  2     as
  3       select * from emp
  4       where sal between 2000 and 4000;
Table created.
Elapsed: 00:00:00.09
satyaki>
satyaki>select * from hist_tab;
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO JOB1      DOB
      7844 TURNER     SALESMAN        7698 08-SEP-81       2178          0         30 SALESMAN
Elapsed: 00:00:00.00
satyaki>
satyaki>
satyaki>update hist_tab
  2     set mgr = 7794;
1 row updated.
Elapsed: 00:00:00.01
satyaki>
satyaki>commit;
Commit complete.
Elapsed: 00:00:00.00
satyaki>
satyaki>select * from hist_tab;
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO JOB1      DOB
      7844 TURNER     SALESMAN        7794 08-SEP-81       2178          0         30 SALESMAN
Elapsed: 00:00:00.00
satyaki>
satyaki>
satyaki>
satyaki>
satyaki>create table tran_tab
  2     as
  3       select * from emp
  4       where sal between 2000 and 7000;
Table created.
Elapsed: 00:00:00.00
satyaki>
satyaki>select * from tran_tab;
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO JOB1      DOB
      7844 TURNER     SALESMAN        7698 08-SEP-81       2178          0         30 SALESMAN
      7902 FORD       ANALYST         7566 03-DEC-81    5270.76                    20 ANALYST
Elapsed: 00:00:00.00
satyaki>
satyaki>ed
Wrote file afiedt.buf
  1  create or replace function fun(c_in number)
  2     return number
  3     is
  4       c_out number(4);
  5     begin
  6       if c_in < 7900 then
  7          c_out := 0;
  8       else
  9         c_out := 1;
10       end if;
11       return c_out;
12*    end;
13  /
Function created.
Elapsed: 00:00:01.00
satyaki>
satyaki>merge into hist_tab o
  2  using (
  3     select empno,
  4            ename,
  5            job,
  6            mgr,
  7            hiredate,
  8            sal,
  9            comm,
10            deptno,
11            job1,
12            dob
13     from (
14              select k.*,
15                     rank() over(order by fun(k.empno)) rn
16              from tran_tab k
17          )
18     where rn = 1
19     ) n
20  on ( o.empno = n.empno)
21  when matched then
22    update set o.ename = n.ename,
23               o.job = n.job,
24               o.mgr = n.mgr,
25               o.hiredate = n.hiredate,
26               o.sal = n.sal,
27               o.comm = n.comm,
28               o.deptno = n.deptno,
29               o.job1 = n.job1,
30               o.dob = n.dob
31  when not matched then
32    insert(
33            o.empno,
34            o.ename,
35            o.job,
36            o.mgr,
37            o.hiredate,
38            o.sal,
39            o.comm,
40            o.deptno,
41            o.job1,
42            o.dob
43          )
44    values(
45            n.empno,
46            n.ename,
47            n.job,
48            n.mgr,
49            n.hiredate,
50            n.sal,
51            n.comm,
52            n.deptno,
53            n.job1,
54            n.dob
55          );
1 row merged.
Elapsed: 00:00:00.03
satyaki>
satyaki>select * from hist_tab;
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO JOB1      DOB
      7844 TURNER     SALESMAN        7698 08-SEP-81       2178          0         30 SALESMAN
Elapsed: 00:00:00.00
satyaki>You can check the final output with old output. It is working perfectly - i guess.
Regards.
Satyaki De.