To use a cursor, it must first be declared in the declaration topic of the SPL program. A cursor declaration appears as follows:

CURSOR name IS query;

name is an identifier that will be used to reference the cursor and its result set later in the program. query is a SQL SELECT statement that determines the result set retrievable by the cursor.

The following codes are some examples of cursor declarations:

CREATE OR REPLACE PROCEDURE cursor_example
IS
    CURSOR emp_cur_1 IS SELECT * FROM emp;
    CURSOR emp_cur_2 IS SELECT empno, ename FROM emp;
    CURSOR emp_cur_3 IS SELECT empno, ename FROM emp WHERE deptno = 10
        ORDER BY empno;
BEGIN
    ...
END;