SELECT * FROM course_group WHERE id_ = #{id} SELECT * FROM course_group ORDER BY id_ INSERT INTO course_group (id_,organ_id_,name_,del_flag,create_time_,update_time_) VALUES(#{id},#{organId},#{name},#{delFlag},#{createTime},#{updateTime}) UPDATE course_group del_flag = #{delFlag}, organ_id_ = #{organId}, update_time_ = #{updateTime}, name_ = #{name}, WHERE id_ = #{id} DELETE FROM course_group WHERE id_ = #{id} SELECT * FROM course_group ORDER BY id_ SELECT COUNT(*) FROM course_group