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       ÉùÃ÷Óα꣨¹ØÁªSQLÓï¾ä£©                    cursor Ãû×Ö is/as sqlÓï¾ä£¨DML£©;
       ´ò¿ªÓαִ꣨ÐÐSQLÓï¾ä£¬Ìî³äÓα꣩ open Ãû×Ö;
       ´ÓÓαêÖÐÌáȡֵ£¬´æ·Åµ½ÐÐÀàÐͱäÁ¿ÖР fetch Ãû×Ö into ÐÐÀàÐͱäÁ¿;
       ¹Ø±ÕÓαꠠ                                               close Ãû×Ö;
 
 
 
 
 
 
declare
  empR emp%rowtype;
  --ÉùÃ÷Óαê(¹ØÁªSQLÓï¾ä)
  cursor empCursor
  is
  select * from emp;
begin
  --´ò¿ªÓαִ꣨ÐÐSQLÓï¾ä£¬Ìî³äÓα꣩
  open empCursor;
  loop
       --´ÓÓαêÖÐÌáȡֵ£¬´æ·Åµ½ÐÐÀàÐͱäÁ¿ÖÐ
       fetch empCursor into empR;
       exit when empCursor%notfound;--ÓαêÖÐûÓÐÊý¾ÝʱÍ˳öÑ­»·
       dbms_output.put_line(empR.ename||' '||empR.sal);
  end loop;
  --¹Ø±ÕÓαê
  close empCursor;
end;
 
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CREATE [OR REPLACE] DIRECTORY directory AS 'pathname';
±¾°¸Àý¾ßÌå´´½¨ÈçÏÂ:
create or replace directory exp_dir as '/tmp';
Ŀ¼´´½¨ÒԺ󣬾ͿÉÒ԰ѶÁдȨÏÞÊÚÓèÌØ¶¨Óû§ ......
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