Oracle Flashback Technologies - 闪回查询

Oracle Flashback Technologies - 闪回查询

查看表中，某行数据的修改记录

#创建一个表，并插入和修改数据

SQL> create table y3(id int,name varchar2());

Table created.

SQL> insert into y3 values(,'wahaha');

 row created.

SQL> commit;

Commit complete.

SQL> update y3 set name='nongfushanquan' where id=;

 row updated.

SQL> commit;

Commit complete.

SQL> update y3 set name='kaifei' where id=;

 row updated.

SQL> commit;

Commit complete.

SQL> update y3 set name='pijiu' where id=;

 row updated.

SQL> commit;

Commit complete.

SQL> update y3 set name='hongniu' where id=;

 row updated.

SQL> commit;

Commit complete.

SQL> update y3 set name='kele' where id=;

 row updated.

SQL> commit;

Commit complete.

SQL>

#查询

#查询
SQL> select
     name,
     versions_starttime,
     versions_startscn,
     versions_endtime,
     versions_endscn,
     versions_xid,
     versions_operation
     from y3
    versions between scn minvalue and maxvalue
    where id =
    order by
    /

NAME                 VERSIONS_STARTTIME        VERSIONS_STARTSCN VERSIONS_ENDTIME          VERSIONS_ENDSCN VERSIONS_XID     V
-------------------- ------------------------- ----------------- ------------------------- --------------- ---------------- -
wahaha               -JUN- 08.36. AM                -JUN- 08.36. AM               I
nongfushanquan       -JUN- 08.36. AM                -JUN- 08.37. AM              0A00040015040000 U
kaifei               -JUN- 08.37. AM                -JUN- 08.37. AM              070018009D030000 U
pijiu                -JUN- 08.37. AM                -JUN- 08.37. AM              01000D0048030000 U
hongniu              -JUN- 08.37. AM                -JUN- 08.39. AM              02001B0021040000 U
kele                 -JUN- 08.39. AM                                                          06000400DC040000 U

 rows selected.

SQL>  

查看语句

select
 name,
 versions_starttime,
 versions_startscn,
 versions_endtime,
 versions_endscn,
 versions_xid,
 versions_operation
 from y3
 versions between scn minvalue and maxvalue
 #versions between timestamp minvalue and maxvalue 也可以根据时间戳来查看
 where id =
 order by
 /