Oracle查看表操作历史记录并恢复数据的方法

1.首先查找表操作的历史记录
select * from v$sqlarea a where a.SQL_TEXT like '%表名%';
2.从上面的记录中找到update语句对应的sql_id
select * from v$sqltext a,v$sqlarea b where a.SQL_ID=b.SQL_ID and b.SQL_ID in('cq53826tk4u3c','afftnrfhu5utk') order by b.LAST_ACTIVE_TIME desc;
3.从上面的记录中找到最新的sql操作记录，然后找到用户名和主机
select * from sys.v_$session l,sys.v_$sql s where s.SQL_ID='cq53826tk4u3c' and l.USERNAME is not null;

//1.根据时间恢复
//示例：
select * from t_noentryquery;
delete from t_noentryquery where fid=7369;
//查询当前电脑时间：
select to_char(sysdate,'yyyy-mm-dd hh24:mi:ss')from dual;
//查询删除之前数据：
select * from t_noentryquery as of timestamp to_timestamp('2018-04-12 09:12:11','yyyy-mm-dd hh24:mi:ss');
//恢复数据：
flashback table t_noentryquery to timestamp to_timestamp('2018-04-12 09:12:11','yyyy-mm-dd hh24:mi:ss');
//注意：若出现报错：ORA-08189：未启用行移动功能，不能闪回表；
//则：
alter table t_noentryquery enable row movement;  //开启行移动功能
alter table t_noentryquery disable row movement; //关闭行移动功能

   create table test(id number,name varchar2(10),gender varchar2(5));
   insert into test values(1,'宋春风','男');
   insert into test values(2,'叶民','男');
   insert into test values(3,'白冰','男');
   insert into test values(4,'方巍森','男');
   insert into test values(5,'孙书祯','男');
   insert into test values(6,'史波','男');
   commit;

   SELECT *
   FROM TEST VERSIONS BETWEEN TIMESTAMP MINVALUE AND MAXVALUE WHERE 
   VERSIONS_STARTTIME IS NOT NULL ORDER BY VERSIONS_STARTTIME DESC;

   UPDATE TEST SET GENDER='女' WHERE NAME='孙书祯';
   UPDATE TEST SET GENDER='女' WHERE NAME='史波';
   commit;