PIVOT query throwing error

I have a request pivot within a region of APEX (pl sql function return sql query) report

declare
  v_term_pivot varchar2(500);
  PIVIN LONG;
  cursor xtoy is SELECT distinct d.JOB FROM emp d;
  v_query LONG;
begin
  OPEN xtoy;
  LOOP
  FETCH xtoy into v_term_pivot;
  EXIT when xtoy%NOTFOUND;
  PIVIN:=PIVIN||''''||v_term_pivot||''' "'||substr(v_term_pivot,1,30)||'", ';
  END LOOP;
  v_query:='SELECT * FROM
  (SELECT x.ENAME, x.JOB, x.SAL FROM emp x)
  PIVOT (
  SUM(x.SAL)
  FOR x.JOB IN ('||substr(PIVIN, 0, length(PIVIN)-1)||')
  )
   order by 1;';
  --dbms_output.put_line(v_query);
  RETURN v_query;
end;

Get an error:

Failed to parse the SQL query:

ORA-01748: only here allowed simple column names

Can someone advice how can this be corrected?

I reworked the code to use the scott. EMP table.

I got the SQL Select function resulting and he ran in SQL Developer.

Syntax 1

You must remove aliases for tables of the PIVOT() section.

line 16 and 17 should be

SUM (SAL)

FOR USE IN (...)

Syntax 2

Line 11: you add comma and space (2 characters)

Line 17: you remove only 1 tank

Syntax 3 (problem semi)

Although the APEX works with it, I would abandon the semicolon (;) to the end.

To name the columns, you must create a function that returns the name of the report column.

Again, this must match the columns listed in the SELECT part

reminder of my warning:

Using a "SELECT *" and lack of "ORDER BY" in your cursor will cause you problems. (maybe not now, but it will.)

MK

Tags: Database

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