select c.id, c.major_id, c.course_name, c.course_code, c.status, c.remark, c.create_by, c.create_time, c.update_by, c.update_time, c.del_flag, m.major_name from tb_course c left join tb_major m on c.major_id = m.id c.del_flag = '0' and c.major_id = #{majorId} and c.course_name like concat('%', #{courseName}, '%') and c.status = #{status} order by c.id desc where c.id = #{id} insert into tb_course (major_id, course_name, course_code, status, remark, create_by, create_time, del_flag) values (#{majorId}, #{courseName}, #{courseCode}, #{status}, #{remark}, #{createBy}, #{createTime}, '0') update tb_course major_id = #{majorId}, course_name = #{courseName}, course_code = #{courseCode}, status = #{status}, remark = #{remark}, update_by = #{updateBy}, update_time = #{updateTime}, where id = #{id} delete from tb_course where id = #{id} delete from tb_course where id in #{id} inner join tb_major_lead ml on ml.major_id = c.major_id and ml.del_flag = '0' c.del_flag = '0' and ml.user_id = #{userId} and c.major_id = #{course.majorId} and c.course_name like concat('%', #{course.courseName}, '%') and c.status = #{course.status} order by c.id desc select count(1) from tb_course where del_flag = '0' and major_id in #{id}