【经验】【ORACLE】存储过程或者函数怎样获取自己的名称和类型

题记：人有时候就好像这存储过程，只有通过和别人交流才能清楚才能知道自己到底是个什么东西！那怕是最最基本的东西你自己都不一定知道。傻B了吧……

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在Oracle中，存储过程和函数等对象，可通过调用OWA_UTIL包中的who_called_me过程来获得自身的名称和类型。

以下是Oracle联机文档对该过程的说明，该过程将返回调用者的一些信息。

Syntax:	owa_util.who_called_me(    owner          out      varchar2    name           out      varchar2    lineno         out      number    caller_t       out      varchar2);
Parameters:	owner - the owner of the program unit. name - the name of the program unit. This is the name of the package, if the calling program unit is wrapped in a package, and the name of the procedure or function if the calling program unit is a stand-alone procedure or function. If the calling program unit is part of an anonymous block, this is NULL. lineno - the line number within the program unit where the call was made. caller_t - the type of program unit that made the call. The possibilities are: package body, anonymous block, procedure, and function. Procedure and function are only for stand-alone procedures and functions.
Generates	Not applicable.

在网上摘了一个应用的例子：

CREATE OR REPLACE FUNCTION fn_getname
   RETURN VARCHAR2
IS
   l_owner    VARCHAR2 (30);
   l_name     VARCHAR2 (30);
   l_lineno   NUMBER;
   l_type     VARCHAR2 (30);
BEGIN
   OWA_UTIL.who_called_me (l_owner, l_name, l_lineno, l_type);
   RETURN l_owner || '.' || l_name||':'||to_char(l_lineno)||','||l_type;
END;
/


CREATE OR REPLACE PROCEDURE demo
AS
BEGIN
   DBMS_OUTPUT.put_line (fn_getname);
END;
/

call demo();

 

通过该例可以了解该过程的应用。看起来，好像函数对象只能通过who_called_me获得自己调用者的信息，调用者通过调用函数来获取自己的信息……真纠结。