今天有個朋友問我為什麼11G的exp出來的檔案不能導入到9I中?由于exp/imp工具的不相容性,把高版本的資料庫導到低版本時,需要使用低版本的exp/imp工具來導入導出。朋友用9i的exp去導出11G資料後再imp導入到9i中,正常導入,然而我自己在自己測試環境測試中切報錯了,報錯資訊如下:
[oracle9i@rhel4 admin]$ exp scott/oracle@orcl11g file='/tmp/scott_test_exp.sql' tables='test_exp' rows=N;
Export: Release 9.2.0.4.0 - Production on Fri Mar 22 06:18:38 2013
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses ZHS16GBK character set (possible charset conversion)
Note: table data (rows) will not be exported
About to export specified tables via Conventional Path ...
. . exporting table TEST_EXP
Export terminated successfully without warnings.
[oracle9i@rhel4 admin]$ imp scott/oracle file='/tmp/scott_test_exp.dmp' tables='test_exp'
Import: Release 9.2.0.4.0 - Production on Fri Mar 22 07:08:59 2013
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export file created by EXPORT:V09.02.00 via conventional path
import done in US7ASCII character set and AL16UTF16 NCHAR character set
import server uses ZHS16GBK character set (possible charset conversion)
IMP-00003: ORACLE error 96 encountered
ORA-00096: invalid value for parameter plsql_compiler_flags, must be from among NON_DEBUG, DEBUG, INTERPRETED, NATIVE
IMP-00000: Import terminated unsuccessfully
在11G,SHOW PARAMETER指令已經找不到plsql_compiler_flags這個參數,由另一個參數代替。
GOOGLE,BAIDU,METALINK相關的錯誤代碼後沒有找到解決方法。更改關鍵字plsql_compiler_flags在metalink找到解決方法,如下:
[oracle11g@rhel4 admin]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Fri Mar 22 07:27:50 2013
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
SQL> CREATE OR REPLACE VIEW exu9defpswitches (
2 compflgs, nlslensem ) AS
3 SELECT a.value, b.value
4 FROM sys.v$parameter a, sys.v$parameter b
5 WHERE a.name = 'plsql_code_type' AND
6 b.name = 'nls_length_semantics'
7 ;
View created.
再次導出導入正常
[oracle9i@rhel4 admin]$ exp scott/ORACLE@orcl11g file='/tmp/scott_test_exp.dmp' tables='test_exp';
Export: Release 9.2.0.4.0 - Production on Fri Mar 22 07:25:43 2013
. . exporting table TEST_EXP 74622 rows exported
Import: Release 9.2.0.4.0 - Production on Fri Mar 22 07:25:51 2013
. importing SCOTT's objects into SCOTT
. . importing table "TEST_EXP" 74622 rows imported
Import terminated successfully without warnings.
11G中改回原來的視圖定義
[oracle11g@rhel4 sql]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Mon Mar 25 02:15:51 2013
5 WHERE a.name = 'plsql_compiler_flags' AND
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
參考文檔:
Export From 11g using EXP Utility Version 9iR2 Produces Corrupt Export Dump [ID 550740.1]
<b> 本文轉自7343696 51CTO部落格,原文連結:http://blog.51cto.com/luoping/1161921</b><b>,如需轉載請自行聯系原作者</b>