DMBS_SQL.to_refcursor equivalent in Oracle 10g

Question

Hello,
Is there any other way to get result as a refcursor in Oracle 10g with DBMS_SQL? I have the function that function generate dynamic query and execute with DBMS_SQL. This function called by java code for viewing result as report. How can I do this, is there equivalent in Oracle 10g for DMBS_SQL.to_refcursor? Please help.
Thanks,

Answer 1

ilkinesrefli wrote:
Is it difficult to understand my answers?Yes, because they are not accurate. You keep saying you can't use ref cursors and must use DBMS_SQL, but you have failed to show us why that is so.
It is impossible because there is dynamic where clause in my query. Show us why it's impossible.
BluShadow     please solve this one:
p_sql := 'select empno, ename, deptno from emp where deptno=:pdeptno';
if ... then
p_sql := p_sql || ' AND empno=:pempno';
end if;
...Is it possible by your way?Yes, ref cursors can be used for dynamic queries. basic example...
SQL> ed
Wrote file afiedt.buf
  1  create or replace function get_refcursor(p_sql in varchar2
  2                                          ,p_whereclause in varchar2 := null
  3                                          ,p_whereval in number := null) return sys_refcursor is
  4    v_rc sys_refcursor;
  5  begin
  6    if p_whereval is not null then
  7      open v_rc for p_sql||' where '||p_whereclause using p_whereval;
  8    else
  9      open v_rc for p_sql;
10    end if;
11    return v_rc;
12* end;
SQL> /
Function created.
SQL> var rc refcursor;
SQL> exec :rc := get_refcursor('select empno, ename, deptno from emp');
PL/SQL procedure successfully completed.
SQL> print rc;
     EMPNO ENAME          DEPTNO
      7369 SMITH              20
      7499 ALLEN              30
      7521 WARD               30
      7566 JONES              20
      7654 MARTIN             30
      7698 BLAKE              30
      7782 CLARK              10
      7788 SCOTT              20
      7839 KING               10
      7844 TURNER             30
      7876 ADAMS              20
      7900 JAMES              30
      7902 FORD               20
      7934 MILLER             10
14 rows selected.
SQL> exec :rc := get_refcursor('select empno, ename, deptno from emp', 'deptno = :1', 20);
PL/SQL procedure successfully completed.
SQL> print rc;
     EMPNO ENAME          DEPTNO
      7369 SMITH              20
      7566 JONES              20
      7788 SCOTT              20
      7876 ADAMS              20
      7902 FORD               20
SQL>So, please explain to us again why ref cursors are impossible to use and you have to use DBMS_SQL?