Cursor tips : refresh data fetched by the cursor within run time,discussion

Question

Hello there,
May be what I am asking about is kind of weird, but here is the Q:
let us assume that I have cursor defined as follows:
cursor emp_cursor is
        select EMPNO, ENAME, deptno
        from emp
        where deptno = 10 ;
emp_rec  emp_cursor%rowtype;  then inside the loop through the data fetched by this cursor, I need to update some records, which might match the criteria of the cursor, by trying the following code segment:
open emp_cursor;
      loop
        fetch emp_cursor into emp_rec;
        exit when emp_cursor%notfound;
        "PROCESS THE RECORD'S DATA "
        DBMS_OUTPUT.Put_Line('count of the records: ' || emp_cursor%rowcount);
        DBMS_OUTPUT.Put_Line('deptno: ' || emp_rec.deptno);
        DBMS_OUTPUT.Put_Line('emp no: ' || emp_rec.empno);
        update emp
        set deptno = 10
        where empno= 7566;
        commit;
        DBMS_OUTPUT.Put_Line('after the update');
      end loop;
      close emp_cursor; but the run never shows the record of employee 7566 as one record of the cursor, may be this is the execution plan of the cursor,
but for the mentioned case, need to re-enter those updated records to the cursor data, to be processed, ( consider that the update statement is conditioned so that not executed always)
any hints or suggestion
Best Regards,

Answer 1

John Spencer wrote:
Justin Cave wrote:
Not possible. You'd have to close and re-open the cursor in order to pick up any changes made to the data after the cursor was opened.Then close and re-open it to get any changes made while processing the second iteration, then close and re-open it to get any changes made while processing the third iteration ad infinitum :-)I'm not claiming there are no downsides to the process :-)
On a serious note, though, the requirement itself is exceedingly odd. You most likely need to rethink your solution so that you remove this requirement. Otherwise, you're likely going to end up querying the same set of rows many, many, many times.
Justin