Opening a Cursor v13
Before a cursor can be used to retrieve rows, it must first be opened. This is accomplished with the OPEN statement.
OPEN <name>;
name is the identifier of a cursor that has been previously declared in the declaration section of the SPL program. The OPEN statement must not be executed on a cursor that has already been, and still is open.
The following shows an OPEN statement with its corresponding cursor declaration.
CREATE OR REPLACE PROCEDURE cursor_example
IS
CURSOR emp_cur_3 IS SELECT empno, ename FROM emp WHERE deptno = 10
ORDER BY empno;
BEGIN
OPEN emp_cur_3;
...
END;