10g 用sys使用者執行資料庫匯入匯出

錯誤現象：

[oracle@wwl data]$ exp " as sysdba" file=/data/sys.dmp log=/data/sys.log full=y;
LRM-00108: invalid positional parameter value 'as'

EXP-00019: failed to process parameters, type 'EXP HELP=Y' for help
EXP-00000: Export terminated unsuccessfully

原因：
這個可能是Oracle10g的一個BUG，只需按照如下兩種方法即可：

解決辦法：

第一種方法：
[oracle@wwl data]$ exp \"sys/oracle as sysdba\" file=/data/sys.dmp log=/data/sys.log full=y;

Export: Release 10.2.0.1.0 - Production on Wed May 2 19:20:12 2012

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, OLAP and Data Mining options
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses WE8ISO8859P1 character set (possible charset conversion)

About to export the entire database ...
. exporting tablespace definitions
. exporting profiles
. exporting user definitions
. exporting roles
. exporting resource costs

第二種方法：
[oracle@wwl ~]$ exp \'sys/oracle as sysdba\' file=/data/sys1.dmp log=/data/sys1.log full=y;

Export: Release 10.2.0.1.0 - Production on Wed May 2 19:26:08 2012

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, OLAP and Data Mining options
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses WE8ISO8859P1 character set (possible charset conversion)

About to export the entire database ...
. exporting tablespace definitions^[
. exporting profiles
. exporting user definitions