解决方案如下
：采用goto进行跳转

DECLARE
   done  BOOLEAN;
BEGIN
   FOR i IN 1..50 LOOP
      IF done THEN
         GOTO end_loop;
      END IF;
   <
   
    > -- not allowed unless an executable statement follows NULL; -- add NULL statement to avoid error END LOOP; -- raises an error without the previous NULL END;
   

11g增加continue关键字用法如下

DECLARE done BOOLEAN; BEGIN FOR i IN 1..50 LOOP IF done THEN continue; END IF; END LOOP; END;