在Oracle 10g中，同字节序跨平台的文件头信息Oracle会自动改写，不再需要转换。 我们看以下测试： [oracle@danaly ora

在Oracle 10g中，同字节序跨平台的文件头信息Oracle会自动改写，不再需要转换。

我们看以下测试：

[oracle@danaly oradata]$ sqlplus "/ as sysdba"

SQL*Plus: Release 10.2.0.1.0 - Production on Thu Jul 12 15:14:21 2007

Copyright (c) 1982, 2005, Oracle. All rights reserved.

Connected to:

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production

With the Partitioning, Oracle Label Security, OLAP and Data Mining Scoring Engine options

SQL> alter database mount;

Database altered.

SQL> alter database open;

Database altered.

SQL> select name from v$datafile;

NAME

--------------------------------------------------------------------------------

/opt/oracle/oradata/eygle/EYGLE/datafile/o1_mf_system_37tc1xns_.dbf

/opt/oracle/oradata/eygle/EYGLE/datafile/o1_mf_undotbs1_37tc29mb_.dbf

/opt/oracle/oradata/eygle/EYGLE/datafile/o1_mf_sysaux_37tc2gqc_.dbf

/opt/oracle/oradata/eygle/EYGLE/datafile/o1_mf_users_37tc2tth_.dbf

SQL> show parameter comp

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

compatible string 10.2.0.1.0

nls_comp string

plsql_compiler_flags string INTERPRETED, NON_DEBUG

plsql_v2_compatibility boolean FALSE

SQL> create tablespace trans

2 datafile '/opt/oracle/oradata/eygle/EYGLE/datafile/trans.dbf' size 10M;

Tablespace created.

SQL> create user trans identified by trans default tablespace trans;

User created.

SQL> grant connect,resource to trans;

Grant succeeded.

SQL> connect trans/trans

create table test as select * from dict;

Connected.

SQL>

Table created.

SQL> select count(*) from test;

COUNT(*)

----------

615

SQL> connect / as sysdba

Connected.

SQL> alter tablespace trans read only;

Tablespace altered.

SQL> exit

Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production

With the Partitioning, Oracle Label Security, OLAP and Data Mining Scoring Engine options

[oracle@danaly oradata]$ exp \'/ as sysdba\' tablespaces=trans transport_tablespace=y file=exp_trans.dmp

Export: Release 10.2.0.1.0 - Production on Thu Jul 12 15:28:24 2007

Copyright (c) 1982, 2005, Oracle. All rights reserved.

Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production

With the Partitioning, Oracle Label Security, OLAP and Data Mining Scoring Engine options

Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set

Note: table data (rows) will not be exported

About to export transportable tablespace metadata...

For tablespace TRANS ...

. exporting cluster definitions

. exporting table definitions

. . exporting table TEST

. exporting referential integrity constraints

. exporting triggers

. end transportable tablespace metadata export

Export terminated successfully without warnings.

[oracle@danaly oradata]$ ls -l exp_trans.dmp

-rw-r--r-- 1 oracle dba 16384 Jul 12 15:28 exp_trans.dmp

[oracle@danaly oradata]$ pwd

/opt/oracle/oradata

，

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