select position_Id, position_name, sort, create_at, update_at, del_flag from mall_school_position insert into mall_school_position position_name, sort, create_at, update_at, del_flag, #{positionName}, #{sort}, #{createAt}, #{updateAt}, #{delFlag}, update mall_school_position position_name = #{positionName}, sort = #{sort}, create_at = #{createAt}, update_at = #{updateAt}, del_flag = #{delFlag}, where position_Id = #{positionId} delete from mall_school_position where position_Id = #{positionId} update mall_school_position set del_flag = '1' where position_Id in #{positionId}