select major_id, parent_id, level, major_name, major_interpret, obtain_employment, is_show, icon, status, sort, remarks, create_at, update_at, del_flag from mall_major_class insert into mall_major_class parent_id, level, major_name, major_interpret, obtain_employment, is_show, icon, status, sort, remarks, create_at, update_at, del_flag, #{parentId}, #{level}, #{majorName}, #{majorInterpret}, #{obtainEmployment}, #{isShow}, #{icon}, #{status}, #{sort}, #{remarks}, #{createAt}, #{updateAt}, #{delFlag}, update mall_major_class parent_id = #{parentId}, `level` = #{level}, major_name = #{majorName}, major_interpret = #{majorInterpret}, obtain_employment = #{obtainEmployment}, is_show = #{isShow}, icon = #{icon}, status = #{status}, sort = #{sort}, remarks = #{remarks}, create_at = #{createAt}, update_at = #{updateAt}, del_flag = #{delFlag}, where major_id = #{majorId} delete from mall_major_class where major_id = #{majorId} delete from mall_major_class where major_id in #{majorId}