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> 查出来的系统表和用户表创建时间是一样的
That happens if the 用户表 were indeed created at the time or soon after the database was created. Is that true? Can you show us a few such tables (query of dba_objects)? Here's one of our production databases.
SQL> alter session set nls_date_format = 'yyyymmdd';
Session altered.
SQL> select trunc(created,'dd') created, count(*) from dba_objects where owner = 'SYSTEM' group by trunc(created,'dd') order by 1;
CREATED COUNT(*)
-------- ----------
20080407 449
20080424 2
20081001 1
20081015 2
20090105 1
Then I can individually check the 6 objects created after (and including) April 24.
Yong Huang
[ 本帖最后由 Yong Huang 于 2009-9-16 13:50 编辑 ] |
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