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Oracle 10g同字节序跨平台迁移

程序员文章站 2022-06-09 12:18:10
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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

Oracle 10g同字节序跨平台迁移