"Oracle"闪回功能恢复偶然丢失的数据

SQL> create table test(id number(3)); 
SQL> insert into test values (1); 
SQL> insert into test values(2); 
SQL> commit; 
SQL> create table rec_date(date_scn);

SQL> execute dbms_flashback.disable; 
SQL> insert into rec_date select sysdate from dual; 
SQL> commit; 
SQL> delete from test where id=1; 
SQL> commit;