カーソル 'ADD_student'のサブプログラムはパッケージ仕様で宣言されており、パッケージ本体に定義する必要があります

Question

カーソル 'ADD_student'のサブプログラムはパッケージ仕様で宣言されており、パッケージ本体で定義する必要があります。私はそれをチェックし、何が起こっているのか分からない。

パッケージ宣言：

create or replace PACKAGE students_package AS 
PROCEDURE add_student(s_name STUDENTS.STUDENT_NAME%type, 
s_surname STUDENTS.SURNAME%type, 
s_pesel STUDENTS.pesel%type, 
s_date STUDENTS.DATE_OF_BIRTH%type, 
s_place STUDENTS.PLACE_OF_BIRTH%type, 
s_behaviour STUDENTS.BEHAVIOR%type, 
s_disease STUDENTS.TYPE_OF_DISEASE%type); 
procedure delete_student(s_id students.student_id%type); 
procedure edit_student(s_id STUDENTS.STUDENT_ID%type, 
s_name STUDENTS.STUDENT_NAME%type, 
s_surname STUDENTS.SURNAME%type, 
s_pesel STUDENTS.pesel%type, 
s_date STUDENTS.DATE_OF_BIRTH%type, 
s_place STUDENTS.PLACE_OF_BIRTH%type, 
s_behavior STUDENTS.BEHAVIOR%type, 
s_disease STUDENTS.TYPE_OF_DISEASE%type); 
END students_PACKAGE; 

ボディ：

create or replace PACKAGE BODY students_package AS 
PROCEDURE add_student(s_name STUDENTS.STUDENT_NAME%type, 
s_surname STUDENTS.SURNAME%type, 
s_pesel STUDENTS.pesel%type, 
s_date STUDENTS.DATE_OF_BIRTH%type, 
s_place STUDENTS.PLACE_OF_BIRTH%type, 
s_behavior STUDENTS.BEHAVIOR%type, 
s_disease STUDENTS.TYPE_OF_DISEASE%type) IS 
BEGIN INSERT INTO  students(STUDENT_NAME,SURNAME,PESEL,DATE_OF_BIRTH,PLACE_OF_BIRTH,BEHAVIOR,TYPE_OF_DISEASE) 
VALUES (s_name ,s_surname ,s_pesel ,s_date ,s_place ,s_behavior ,s_disease); 
end add_student; 
procedure edit_student(s_id STUDENTS.STUDENT_ID%type, 
s_name STUDENTS.STUDENT_NAME%type, 
s_surname STUDENTS.SURNAME%type, 
s_pesel STUDENTS.PESEL%type, 
s_date STUDENTS.DATE_OF_BIRTH%type, 
s_place STUDENTS.PLACE_OF_BIRTH%type, 
s_behavior STUDENTS.BEHAVIOR%type, 
s_disease STUDENTS.TYPE_OF_DISEASE%type)is 
BEGIN update students 
set students.STUDENT_NAME=s_name,students.SURNAME=s_surname,students.PESEL=s_pesel, 
students.DATE_OF_BIRTH=s_date,students.PLACE_OF_BIRTH=s_place, 
students.BEHAVIOR=s_behavior,students.TYPE_OF_DISEASE=s_disease 
where students.STUDENT_ID = s_id; 
end edit_student; 
procedure delete_student(s_id STUDENTS.STUDENT_ID%type) is 
begin update students 
set students.STUDENT_ID=null,students.SURNAME=null,students.PESEL=null, students.DATE_OF_BIRTH=null, 
students.PLACE_OF_BIRTH=null, students.BEHAVIOR=null,students.TYPE_OF_DISEASE=null 
where students.STUDENT_ID = s_id; 
end delete_student; 
END students_package; 

私が間違っているかわかりません。

私はまた、トリガーしている：

create or replace TRIGGER "STUDENTS_TRIGGER" 
    before insert on 
    STUDENTS 
    for each row begin :new.student_id := students_auto_incr.nextval; 
    end; 

とsequention：

CREATE SEQUENCE "KONRAD"."STUDENTS_AUTO_INCR" MINVALUE 1 MAXVALUE 9999999999999999999999999999 INCREMENT BY 1 START WITH 1 CACHE 20 NOORDER NOCYCLE ; 

Answer 1

パラメータs_behaviourは、仕様とパッケージで異なる綴られる：

s_behaviour STUDENTS.BEHAVIOR%type, 

対

s_behavior STUDENTS.BEHAVIOR%type,