复制CREATE TABLE dbo_students( student_id INT(2) AUTO_INCREMENT NOT NULL,门使 student_name VARCHAR(50), course_studied INT(2), PRIMARY KEY (student_id));CREATE TABLE dbo_courses( course_id INT(2) AUTO_INCREMENT NOT NULL, course_name VARCHAR(30), PRIMARY KEY (course_id));1.2.3.4.5.6.7.8.9.10.11.12.13.14.