Question

执行此块时，我收到“ORA-01410：无效的ROWID”异常。有什么想法吗？

DECLARE
  CURSOR c_orders IS
    SELECT * from orders FOR UPDATE OF no;
  v_order_record c_orders%ROWTYPE;
BEGIN
  OPEN c_orders; 
  LOOP
    FETCH c_orders INTO v_order_record;
    UPDATE orders SET no = 11 WHERE CURRENT OF c_orders;
    EXIT WHEN c_orders%NOTFOUND; 
  END LOOP;  
  CLOSE c_orders; 
END;

但是，如果使用FOR IN语法，一切都有效：

DECLARE
  CURSOR c_orders IS
    SELECT * from orders FOR UPDATE OF no;
BEGIN
  FOR rec IN c_orders
  LOOP
    UPDATE orders SET no = 11 WHERE CURRENT OF c_orders;
  END LOOP; 
END;

Answer 1

将exit when移至update之前 - 您无法更新不存在的内容。

如何使用WHERE CURRENT OF更新游标记录？

1 个答案: