SELECT * FROM course_schedule WHERE id_ = #{id} SELECT * FROM course_schedule ORDER BY id_ INSERT INTO course_schedule (id_,class_group_id_,status_,subsidy_,class_date_,start_class_time_,end_class_time_,teacher_id_,actual_teacher_id_,create_time_,update_time_) VALUES(#{id},#{classGroupId},#{status,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler},#{subsidy},#{classDate},#{startClassTime},#{endClassTime},#{teacherId},#{actualTeacherId},now(),now()) UPDATE course_schedule class_date_ = #{classDate}, end_class_time_ = #{endClassTime}, status_ = #{status,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler}, actual_teacher_id_ = #{actualTeacherId}, subsidy_ = #{subsidy}, class_group_id_ = #{classGroupId}, start_class_time_ = #{startClassTime}, teacher_id_ = #{teacherId}, update_time_ = #{updateTime}, WHERE id_ = #{id} DELETE FROM course_schedule WHERE id_ = #{id} SELECT * FROM course_schedule ORDER BY id_ SELECT COUNT(*) FROM course_schedule SELECT cs.id_ , cs.class_date_, cs.start_class_time_, cs.end_class_time_, cs.status_ course_status_, cg.id_ class_id, cg.subject_id_, cg.name_ class_name, cg.type_ class_type, mg.id_ music_group_id, mg.name_ music_group_name, s.id_ school_id_, s.address_, s.longitude_latitude_ FROM course_schedule cs LEFT JOIN class_group cg ON cs.class_group_id_=cg.id_ LEFT JOIN music_group mg ON cg.music_group_id_=mg.id_ LEFT JOIN school s ON mg.school_id_=s.id_ WHERE cs.id_= #{courseID} SELECT cgsm.class_group_id_, su.id_ student_id_, su.username_, mg.id_ music_group_id_, s.id_ subject_id_, s.name_ subject_name_, cgsm.status_ FROM class_group cg LEFT JOIN class_group_student_mapper cgsm ON cg.id_=cgsm.class_group_id_ LEFT JOIN sys_user su ON cgsm.user_id_=su.id_ LEFT JOIN music_group mg ON cg.music_group_id_=mg.id_ LEFT JOIN `subject` s ON cg.subject_id_=s.id_ WHERE cgsm.class_group_id_=#{classID} AND cgsm.status_!="DROP_OUT"