很多人在进行数据迁移时，希望把数据导入不同于原系统的表空间，在导入之后却往往发现，数据被导入了原表空间。
本例举例说明解决这个问题:
1.如果缺省的用户具有DBA权限
那么导入时会按照原来的位置导入数据，即导入到原表空间 
$ imp bjbbs/passwd file=bj_bbs.dmp fromuser=jive touser=bjbbs grants=n
Import: Release 8.1.7.4.0 - Production on Mon Sep 22 11:49:41 2003
(c) Copyright 2000 Oracle Corporation.  All rights reserved.
Connected to: Oracle8i Enterprise Edition Release 8.1.7.4.0 - 64bit Production
With the Partitioning option
JServer Release 8.1.7.4.0 - 64bit Production
Export file created by EXPORT:V08.01.07 via conventional path
Warning: the objects were exported by JIVE, not by you
import done in ZHS16GBK character set and ZHS16GBK NCHAR character set
. . importing table                "HS_ALBUMINBOX"         12 rows imported
. . importing table                "HS_ALBUM_INFO"         47 rows imported
. . importing table                   "HS_CATALOG"         13 rows imported
. . importing table          "HS_CATALOGAUTHORITY"          5 rows imported
. . importing table         "HS_CATEGORYAUTHORITY"          0 rows imported
....
. . importing table                 "JIVEUSERPROP"          4 rows imported
. . importing table                    "JIVEWATCH"          0 rows imported
. . importing table                   "PLAN_TABLE"          0 rows imported
. . importing table                   "TMZOLDUSER"          3 rows imported
. . importing table                  "TMZOLDUSER2"          3 rows imported
About to enable constraints...
Import terminated successfully without warnings.

查询发现仍然导入了USER表空间 
$ sqlplus bjbbs/passwd
SQL*Plus: Release 8.1.7.0.0 - Production on Mon Sep 22 11:50:03 2003
(c) Copyright 2000 Oracle Corporation.  All rights reserved.
Connected to:
Oracle8i Enterprise Edition Release 8.1.7.4.0 - 64bit Production
With the Partitioning option
JServer Release 8.1.7.4.0 - 64bit Production
SQL> select table_name,tablespace_name from user_tables;
TABLE_NAME                     TABLESPACE_NAME
------------------------------ ------------------------------
HS_ALBUMINBOX                  USERS
HS_ALBUM_INFO                  USERS
HS_CATALOG                     USERS
HS_CATALOGAUTHORITY            USERS
HS_CATEGORYAUTHORITY           USERS
HS_CATEGORYINFO                USERS
HS_DLF_DOWNLOG                 USERS
...
JIVEWATCH                      USERS
PLAN_TABLE                     USERS
TMZOLDUSER                     USERS
TABLE_NAME                     TABLESPACE_NAME
------------------------------ ------------------------------
TMZOLDUSER2                    USERS
45 rows selected.
2.回收用户unlimited tablespace权限
这样就可以导入到用户缺省表空间 
SQL> create user bjbbs identified by passwd
2  default tablespace bjbbs
3  temporary tablespace temp
4  /
User created.
SQL> grant connect,resource to bjbbs;
Grant succeeded.
SQL> grant dba to bjbbs;
Grant succeeded.
SQL> revoke unlimited tablespace from bjbbs;
Revoke succeeded.
SQL> alter user bjbbs quota 0 on users;
User altered.
SQL> alter user bjbbs quota unlimited on bjbbs;
User altered.
SQL> exit
Disconnected from Oracle8i Enterprise Edition Release 8.1.7.4.0 - 64bit Production
With the Partitioning option
JServer Release 8.1.7.4.0 - 64bit Production

重新导入数据 
$ imp bjbbs/passwd file=bj_bbs.dmp fromuser=jive touser=bjbbs grants=n
Import: Release 8.1.7.4.0 - Production on Mon Sep 22 12:00:51 2003
(c) Copyright 2000 Oracle Corporation.  All rights reserved.
Connected to: Oracle8i Enterprise Edition Release 8.1.7.4.0 - 64bit Production
With the Partitioning option
JServer Release 8.1.7.4.0 - 64bit Production
Export file created by EXPORT:V08.01.07 via conventional path
Warning: the objects were exported by JIVE, not by you
import done in ZHS16GBK character set and ZHS16GBK NCHAR character set
. . importing table                "HS_ALBUMINBOX"         12 rows imported
. . importing table                "HS_ALBUM_INFO"         47 rows imported
. . importing table                   "HS_CATALOG"         13 rows imported
. . importing table          "HS_CATALOGAUTHORITY"          5 rows imported
. . importing table         "HS_CATEGORYAUTHORITY"          0 rows imported
. . importing table              "HS_CATEGORYINFO"          9 rows imported
. . importing table               "HS_DLF_DOWNLOG"          0 rows imported
....
. . importing table                     "JIVEUSER"        102 rows imported
. . importing table                 "JIVEUSERPERM"         81 rows imported
. . importing table                 "JIVEUSERPROP"          4 rows imported
. . importing table                    "JIVEWATCH"          0 rows imported
. . importing table                   "PLAN_TABLE"          0 rows imported
. . importing table                   "TMZOLDUSER"          3 rows imported
. . importing table                  "TMZOLDUSER2"          3 rows imported
About to enable constraints...
Import terminated successfully without warnings.
SQL> select table_name,tablespace_name from user_tables;
TABLE_NAME                     TABLESPACE_NAME
------------------------------ ------------------------------
HS_ALBUMINBOX                  BJBBS
HS_ALBUM_INFO                  BJBBS
HS_CATALOG                     BJBBS
HS_CATALOGAUTHORITY            BJBBS
....
JIVETHREAD                     BJBBS
JIVETHREADPROP                 BJBBS
JIVEUSER                       BJBBS
JIVEUSERPERM                   BJBBS
JIVEUSERPROP                   BJBBS
JIVEWATCH                      BJBBS
PLAN_TABLE                     BJBBS
TMZOLDUSER                     BJBBS
TABLE_NAME                     TABLESPACE_NAME
------------------------------ ------------------------------
TMZOLDUSER2                    BJBBS
45 rows selected.

现在数据被导入到正确的用户表空间中


开心过好每一天。。。。。