Hi, Your db can't work properly with sysaux offline. Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\Administrator>sqlplus / as sysdba SQL*Plus: Release 10.1.0.2.0 - Production on Mon Aug 1 15:38:09 2005 Copyright (c) 1982, 2004, Oracle. All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production With the Partitioning, OLAP and Data Mining options SQL> select count(*) from all_objects 2 where status = 'VALID'; COUNT(*) ---------- 48887 SQL> alter tablespace sysaux offline; Tablespace altered. SQL> select count(*) from all_objects 2 where status = 'VALID'; where status = 'VALID' * ERROR at line 2: ORA-00376: file 3 cannot be read at this time ORA-01110: data file 3: 'C:\MYORACLE\ORADATA\ORA10G\SYSAUX01.DBF' ORA-06512: at "SYS.XML_SCHEMA_NAME_PRESENT", line 17 SQL> alter tablespace sysaux online; Tablespace altered. SQL> select count(*) from all_objects 2 where status = 'VALID'; COUNT(*) ---------- 48887 SQL> ----- Original Message ----- From: "Sami Seerangan" <dba.orcl@xxxxxxxxx> To: "oracle-l" <oracle-l@xxxxxxxxxxxxx> Sent: Sunday, July 31, 2005 2:34 AM Subject: ALTER TABLESPACE SYSAUX OFFLINE; > I remember the document says that we cannot put SYSAUX in offline. > > SQL> ALTER TABLESPACE SYSAUX OFFLINE; > > Tablespace altered. > > SQL> select * from v$version; > > BANNER > ---------------------------------------------------------------- > Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Prod > PL/SQL Release 10.1.0.2.0 - Production > CORE 10.1.0.2.0 Production > TNS for 32-bit Windows: Version 10.1.0.2.0 - Production > NLSRTL Version 10.1.0.2.0 - Production > > > SQL> select open_mode,name from v$database; > > OPEN_MODE NAME > ---------- --------- > READ WRITE WIN2K10G > -- > //www.freelists.org/webpage/oracle-l > -- //www.freelists.org/webpage/oracle-l