1. select FIRST_LOAD_TIME from V$SQL where SQL_TEXT like '%update MAP_OPTCBL_POINT_70 set shape%'--find out the time point you need to restore
2、
create table t_table_recove -- new table
as select * from MAP_OPTCBL_POINT_70 -- the table you mishandled
as of timestamp to_timestamp('2013-09-23 11:38:46','yyyy-mm-dd hh24:mi:ss');--time point
-- get the data you want
3. delete MAP_OPTCBL_POINT_70;--delete all the data in the original table
4. insert into MAP_OPTCBL_POINT_70 select * from t_table_recove;--recover data