Store and restore a sys_refcursor

Question

Hi
I'm building a simple reporting system, and need to cache SQL results. As of the current implementation I use .NET to get a dataset and store that dataset to the database to be able to restore it later.
I wondered if there is a generic way to take any sys_refcursor, store it as XML(or another format) and at a later time, restore it as sys_refcursor again.
It would be nice to schedule the reporting and store the results without including .NET in the picture

Answer 1

Maybe this gives you an idea:
SQL> declare
  2   cur sys_refcursor;
  3   c integer;
  4   x xmltype;
  5  begin
  6   open cur for select empno, ename from emp;
  7   c := dbms_xmlgen.newcontext(cur);
  8   x := dbms_xmlgen.getxmltype(c);
  9   dbms_output.put_line(x.extract('ROWSET/ROW').getstringval());
10   dbms_xmlgen.restartquery(c);
11
12   -- do something with the cursor ....
13   close cur;
14  end;
15  /
<ROW>
  <EMPNO>7369</EMPNO>
  <ENAME>SMITH</ENAME>
</ROW>
<ROW>
<EMPNO>7499</EMPNO>
  <ENAME>ALLEN</ENAME>
</ROW>
<ROW>
  <EMPNO>7521</EMPNO>
<ENAME>WARD</ENAME>
</ROW>
<ROW>
  <EMPNO>7566</EMPNO>
<ENAME>JONES</ENAME>
</ROW>
<ROW>
  <EMPNO>7654</EMPNO>
<ENAME>MARTIN</ENAME>
</ROW>
<ROW>
  <EMPNO>7698</EMPNO>
<ENAME>BLAKE</ENAME>
</ROW>
<ROW>
  <EMPNO>7782</EMPNO>
<ENAME>CLARK</ENAME>
</ROW>
<ROW>
  <EMPNO>7788</EMPNO>
<ENAME>SCOTT</ENAME>
</ROW>
<ROW>
  <EMPNO>7839</EMPNO>
<ENAME>KING</ENAME>
</ROW>
<ROW>
  <EMPNO>7844</EMPNO>
<ENAME>TURNER</ENAME>
</ROW>
<ROW>
  <EMPNO>7876</EMPNO>
<ENAME>ADAMS</ENAME>
</ROW>
<ROW>
  <EMPNO>7900</EMPNO>
<ENAME>JAMES</ENAME>
</ROW>
<ROW>
  <EMPNO>7902</EMPNO>