SELECT last_load_time, sql_text FROM v$sql WHERE last_load_time IS NOT NULL and sql_text like '%,''15''%' ORDER BY last_load_time DESC;
创建一个新表将上述语句执行之前的数据插入进去
create table tbl_research_recove as select * from tbl_research as of timestamp to_timestamp('2014-10-10/18:03:44','yyyy-mm-dd/hh24:mi:ss');
用比较工具找到相应的数据并恢复