データベースにデータを入力しようとしていますが、ORA-02291: データを挿入する順序に関係なく整合性制約エラーが発生します。fk を作成する前にデータを入力する必要がありますか (ただし、これはデータベースでは逆のようです)。ステートメントへの挿入ごとにエラーが発生します。申し訳ありませんが、私は pl/sql の初心者です。これが私のコードです：
--
-- department Table
--
CREATE TABLE department (
name VARCHAR2(45) NOT NULL,
major VARCHAR2(45) NOT NULL,
minor VARCHAR2(45),
chair_id NUMBER(10) NOT NULL,
chair_email VARCHAR2(45) NOT NULL
);
ALTER TABLE department ADD CONSTRAINT departrment_pk PRIMARY KEY ( name );
--
-- faculty TABLE
--
CREATE TABLE faculty (
faculty_id NUMBER(10) NOT NULL,
cs_id VARCHAR2(45) NOT NULL,
faculty_email VARCHAR2(45) NOT NULL,
status VARCHAR2(45) NOT NULL,
name VARCHAR2(45) NOT NULL,
department_name VARCHAR2(45) NOT NULL
);
ALTER TABLE faculty ADD CONSTRAINT faculty_pk PRIMARY KEY ( faculty_id,
faculty_email );
--
-- student TABLE
--
CREATE TABLE student (
student_id NUMBER(10) NOT NULL,
student_email VARCHAR2(45) NOT NULL,
ethnicity NUMBER(10) NOT NULL,
standing VARCHAR2(45) NOT NULL,
name VARCHAR2(45) NOT NULL,
gender VARCHAR2(45) NOT NULL,
faculty_id NUMBER(10) NOT NULL,
faculty_email VARCHAR2(45) NOT NULL
);
ALTER TABLE student ADD CONSTRAINT student_pk PRIMARY KEY ( student_id,
student_email );
--
-- course TABLE
--
CREATE TABLE course (
course_number NUMBER(10) NOT NULL,
hours NUMBER(10) NOT NULL,
title VARCHAR2(45) NOT NULL,
section NUMBER(10) NOT NULL,
department_name VARCHAR2(45) NOT NULL,
faculty_id NUMBER(10) NOT NULL,
faculty_email VARCHAR2(45) NOT NULL
);
ALTER TABLE course ADD CONSTRAINT course_pk PRIMARY KEY ( course_number );
--
-- location TABLE
--
CREATE TABLE location (
building_number NUMBER(10) NOT NULL,
room_number NUMBER(10) NOT NULL,
department_name VARCHAR2(45) NOT NULL
);
--
-- student_took_course TABLE
--
CREATE TABLE student_took_course (
student_id NUMBER(10) NOT NULL,
student_email VARCHAR2(45) NOT NULL,
course_number NUMBER(10) NOT NULL,
grade NUMBER(10)
);
--
-- create forgein keys
--
ALTER TABLE course
ADD CONSTRAINT course_department_fk FOREIGN KEY ( department_name )
REFERENCES department ( name )
ON DELETE CASCADE;
ALTER TABLE course
ADD CONSTRAINT course_faculty_fk FOREIGN KEY ( faculty_id,
faculty_email )
REFERENCES faculty ( faculty_id,
faculty_email )
ON DELETE CASCADE;
ALTER TABLE student_took_course
ADD CONSTRAINT course_number_fk FOREIGN KEY ( course_number )
REFERENCES course ( course_number )
ON DELETE CASCADE;
ALTER TABLE department
ADD CONSTRAINT department_faculty_fk FOREIGN KEY ( chair_id,
chair_email )
REFERENCES faculty ( faculty_id,
faculty_email );
ALTER TABLE faculty
ADD CONSTRAINT faculty_department_fk FOREIGN KEY ( department_name )
REFERENCES department ( name );
ALTER TABLE location
ADD CONSTRAINT location_department_fk FOREIGN KEY ( department_name )
REFERENCES department ( name );
ALTER TABLE student
ADD CONSTRAINT student_faculty_fk FOREIGN KEY ( faculty_id,
faculty_email )
REFERENCES faculty ( faculty_id,
faculty_email );
ALTER TABLE student_took_course
ADD CONSTRAINT student_id_fk FOREIGN KEY ( student_id,
student_email )
REFERENCES student ( student_id,
student_email )
ON DELETE CASCADE;
--
-- insert info
--
INSERT INTO department (name, major, minor, chair_id, chair_email) VALUES
('mechanical enginering', 'mechanical major', 'mechanical minor', '1', 'bob@mechanical.edu');
INSERT INTO faculty (faculty_id, cs_id, faculty_email, status, name, department_name) VALUES
('1', '1', 'bob@mechanical.edu', 'active', 'bob', 'mechanical enginering');
INSERT INTO student (student_id, student_email, ethnicity, standing, name, gender, faculty_id, faculty_email) VALUES
('900123456', 'alice@student.edu', '50', 'good', 'alice', 'f', '1', 'bob@mechanical.edu');
INSERT INTO course (course_number, hours, title, section, department_name, faculty_id, faculty_email) VALUES
('543', '3', 'fluids', '01', 'mechanical enginering', '1', 'bob@mechanical.edu');
INSERT INTO location (building_number, room_number, department_name) VALUES
('12', '103', 'mechanical engineering');
INSERT INTO student_took_course (student_id, student_email, course_number, grade) VALUES
('900123456', 'alice@student.edu', '543', '3');
INSERT INTO department (name, major, minor, chair_id, chair_email) VALUES
('computer science', 'computer science major', '4', 'jerry@cs.edu');
INSERT INTO faculty (faculty_id, cs_id, faculty_email, status, name, department_name) VALUES
('4', '2', 'jerry@cs.edu', 'active', 'jerry', 'computer science');
INSERT INTO student (student_id, student_email, ethnicity, standing, name, gender, faculty_id, faculty_email) VALUES
('900987654', 'noah@student.edu', '23', 'good', 'noah', 'm', '4', 'jerry@cs.edu');
INSERT INTO student (student_id, student_email, ethnicity, standing, name, gender, faculty_id, faculty_email) VALUES
('900316487', 'bruce@student.edu', '23', 'probation', 'bruce', 'm', '4', 'jerry@cs.edu');
INSERT INTO course (course_number, hours, title, section, department_name, faculty_id, faculty_email) VALUES
('460', '4', 'golang', '01', 'computer science', '4', 'jerry@cs.edu');
INSERT INTO location (building_number, room_number, department_name) VALUES
('43', '209', 'computer science');
INSERT INTO student_took_course VALUES
('900987654', 'noah@student.edu', '460', '4');
INSERT INTO department (name, major, minor, chair_id, chair_email) VALUES
('nuclear enginering', 'nuclear major', NULL, '3', 'james@nuckear.edu');
INSERT INTO faculty (faculty_id, cs_id, faculty_email, status, name, department_name) VALUES
('3', '7', 'james@nuclear.edu', 'active', 'james', 'nuclear enginering');
INSERT INTO student (student_id, student_email, ethnicity, standing, name, gender, faculty_id, faculty_email) VALUES
('900876543', 'alex@student.edu', '37', 'probation', 'alex', 'm', '3', 'james@nuclear.edu');
INSERT INTO course (course_number, hours, title, section, department_name, faculty_id, faculty_email) VALUES
('845', '2', 'reactors', '01', 'nuclear enginering', '3', 'james@nuclear.edu');
INSERT INTO location (building_number, room_number, department_name) VALUES
('65', '132', 'nuclear enginering');
INSERT INTO student_took_course VALUES
('900876543', 'alex@student.edu', '845', '2');
INSERT INTO department (name, major, minor, chair_id, chair_email) VALUES
('biology', 'biology major', NULL, '8', 'elizabeth@biology.edu');
INSERT INTO faculty (faculty_id, cs_id, faculty_email, status, name, department_name) VALUES
('8', '6', 'elizabeth@biology.edu', 'active', 'elizabeth', 'biology');
INSERT INTO faculty (faculty_id, cs_id, faculty_email, status, name, department_name) VALUES
('2', '9', 'dave@biology.edu', 'resigned', 'dave', 'biology');
INSERT INTO student (student_id, student_email, ethnicity, standing, name, gender, faculty_id, faculty_email) VALUES
('900452367', 'paul@student.edu', '05', 'good', 'paul', 'm', '8', 'elizabeth@biology.edu');
INSERT INTO course (course_number, hours, title, section, department_name, faculty_id, faculty_email) VALUES
('324', '3', 'micro biology', '01', 'biology', '8', 'elizabeth@biology.edu');
INSERT INTO course (course_number, hours, title, section, department_name, faculty_id, faculty_email) VALUES
('113', '3', 'intro to biology', '01', 'biology', '2', 'dave@biology.edu');
INSERT INTO location (building_number, room_number, department_name) VALUES
('04', '213', 'biology');
INSERT INTO student_took_course VALUES
('900452367', 'paul@student.edu', '324', '4');
INSERT INTO student_took_course VALUES
('900452367', 'paul@student.edu', '113', '2');