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估计是你的用户有问题。这几个语句是没有问题的。
-bash-3.2$ sqlplus "/as sysdba"
SQL*Plus: Release 10.2.0.1.0 - Production on 星期三 5月 18 10:27:41 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
连接到:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
SQL> select count(*) from user_users;
COUNT(*)
----------
1
SQL> select count(*) from dba_users;
COUNT(*)
----------
30
SQL> select count(*) from all_users;
COUNT(*)
----------
30 |
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