PLSQL无意义（？）错误PLS-00103在包和包体中

Question

我得到了我认为是一个程序无意义的错误。

CREATE OR REPLACE PACKAGE reg AS
    TYPE ref_cursor IS ref cursor;
    ...
    FUNCTION show_enrollments RETURN ref_cursor;
    PROCEDURE return_prereqs
        (param_dept_code IN prerequisites.dept_code%type,
        param_course_no IN prerequisites.course_no%type);
>   PROCEDURE enroll
>       (param_sid IN enrollments.sid%type,
>       param_classid IN enrollments.classid%type,
>       err_msg OUT varchar(76));
    PROCEDURE delete_student
        (param_sid IN enrollments.sid%type);
    ...
END;
/
show errors

我收到的错误

 LINE/COL ERROR
 -------- -------
 31/23    PLS-00103: Encountered the symbol "(" when expecting one of the
          following:
          := . ) , @ % default character
          The symbol ":=" was substituted for "(" to continue.

我得到的包体错误

 LINE/COL ERROR
 -------- -------
 328/23   PLS-00103: Encountered the symbol "(" when expecting one of the
          following:
          := . ) , @ % default character
          The symbol ":=" was substituted for "(" to continue.

这是程序包正文中的程序

PROCEDURE enroll
    (param_sid IN enrollments.sid%type,
    param_classid IN enrollments.classid%type,
    err_msg OUT varchar(76)) 
IS...

我在这里做些蠢事吗？我看不出有什么不对，而且非常令人沮丧。

Answer 1

我很确定它是err_msg OUT varchar(76)，因为Oracle中没有VARCHAR数据类型，只有VARCHAR2。

尝试：

PROCEDURE enroll
    (param_sid IN enrollments.sid%type,
    param_classid IN enrollments.classid%type,
    err_msg OUT varchar2(76)) 
IS...

有关详细信息，请参阅SQL Data Types in the PL/SQL Language Reference。

Answer 2

您好请删除程序中的大小，如下所示：

  PROCEDURE enroll
       (param_sid IN enrollments.sid%type,
       param_classid IN enrollments.classid%type,
       err_msg OUT varchar2);

这里我也有更名，但你可以保留你的名字

尺寸：

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