今天在研究了一下關于ORACLE的導入導出的功能，周五快要下班的時候給同事新建一個表空間，將同一個數據庫中的某個用戶下的表導入新的表空間上，建好表空間和用戶后，直接用 exp ,imp 來導入數據到新的表空間，查是發現后來導入的數據還在原來的表空間上，（周五那天的我是用工具編輯DMP文件，修改里的表空間名后導入的），后來想起來了eygle的書上寫了關于這個的問題，于是今天就來試驗了一下。
第一種：修改用戶的一些權限。
首先使用sytem帳戶登陸
--創建新表空間的用戶
SQL> create user pangzi identified by pangzi default tablespace pangzi temporary tablespace temp;
用戶已創建。
--授給新用戶一般的權限
SQL> grant export full database to pangzi;
授權成功。
SQL> grant import full database to pangzi;
授權成功。
SQL> grant connect,resource to pangzi;
授權成功。
SQL> grant create procedure to pangzi;
授權成功。
SQL> grant create job to pangzi;
授權成功。
SQL> grant create view to pangzi;
授權成功。
SQL> grant create synonym to pangzi;
授權成功。
--從這里開始將是增加的，為了使導入的數據，不放在原來的表空間上
SQL> grant dba to pangzi;
--收回用戶的umlimited tablespace權限
SQL> revoke unlimited tablespace from pangzi;
--設置新創建的用戶可使用syb表空間的大小0（原數據所在的表空間為syb）
SQL> alter user pangzi quota 0 on syb;
--設置新創建的用戶可使用pangzi表空間的大小不限制
SQL> alter user pangzi quota unlimited on pangzi;
--收回DBA權限
SQL> revoke dba from pangzi;
執行導入數據
C:\Users\dyspangzi>imp pangzi/pangzi@testdev file=syb.dmp full=y
Import: Release 10.2.0.3.0 - Production on 星期六 4月 21 17:48:54 2012
Copyright (c) 1982, 2005, Oracle. All rights reserved.
連接到: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
經由常規路徑由 EXPORT:V10.02.01 創建的導出文件
警告: 這些對象由 SYB 導出, 而不是當前用戶
已經完成 ZHS16GBK 字符集和 AL16UTF16 NCHAR 字符集中的導入
. 正在將 SYB 的對象導入到 PANGZI
. . 正在導入表 "ALL_SALES"導入了 360 行
. . 正在導入表 "COUPONS"導入了 6 行
. . 正在導入表 "CUSTOMERS"導入了 5 行
. .中間部分內容省略，都是導入的信息
. . 正在導入表 "REG_EXPS"導入了 1 行
. . 正在導入表 "SALARY_GRADES"導入了 4 行
即將啟用約束條件...
成功終止導入, 沒有出現警告。
導入成功，我們看導的表已經在新的表空間中了
SQL> show user
USER 為 "PANGZI"
SQL> select table_name,tablespace_name from user_tables;
TABLE_NAME TABLESPACE_NAME
------------------------------ ------------------------------
DYSPANGZI PANGZI
CUSTOMERS PANGZI
PRODUCT_TYPES PANGZI
PRODUCTS PANGZI
PURCHASES PANGZI
EMPLOYEES PANGZI
SALARY_GRADES PANGZI
PURCHASES_WITH_TIMESTAMP PANGZI
PURCHASES_TIMESTAMP_WITH_TZ PANGZI
PURCHASES_WITH_LOCAL_TZ PANGZI
COUPONS PANGZI
TABLE_NAME TABLESPACE_NAME
------------------------------ ------------------------------
PROMOTIONS PANGZI
ORDER_STATUS PANGZI
PRODUCT_CHANGES PANGZI
MORE_PRODUCTS PANGZI
MORE_EMPLOYEES PANGZI
DIVISIONS PANGZI
JOBS PANGZI
EMPLOYEES2 PANGZI
ALL_SALES PANGZI
PRODUCT_PRICE_AUDIT PANGZI
REG_EXPS PANGZI
已選擇22行。
第二種：使用EXPDP和IMPDP來導入和導出
使用expdp來導出，首先要為一個參數來指定一個路徑——directory，expdp是在服務器端工作，導出的文件需要放在本地目錄，這個參數就是保存導出文件的位置。這個可以自己創建，也可以是默認的，我自己創建了一個，名字是expdir
SQL> CREATE OR REPLACE DIRECTORY expdir AS '/var/backup';
目錄已創建。
SQL> select * from dba_directories;
OWNER DIRECTORY_NAME DIRECTORY_PATH
------------------- ------------------------------- -----------------------------------------
SYS ADMIN_DIR /ade/aime_10.2_lnx_push/oracle/md/admin
SYS DATA_PUMP_DIR /usr/app/oracle/product/10.2.0/db_1/rdbms/log/
SYS WORK_DIR /ade/aime_10.2_lnx_push/oracle/work
SYS EXPDIR /var/backup
--給用戶授予讀寫權限
SQL> grant read,write on directory expdir to syb;
開始導出數據
[oracle@dyspangzi ~]$ expdp dumpfile=syb.dmp directory=expdir;
Export: Release 10.2.0.1.0 - Production on Saturday, 21 April, 2012 18:06:46
Copyright (c) 2003, 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
Starting "SYB"."SYS_EXPORT_SCHEMA_01": dumpfile=syb.dmp directory=expdir
Estimate in progress using BLOCKS method...
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 1.375 MB
Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA
Processing object type SCHEMA_EXPORT/TABLE/TABLE
Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX
Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
Processing object type SCHEMA_EXPORT/TABLE/COMMENT
Processing object type SCHEMA_EXPORT/PACKAGE/PACKAGE_SPEC
Processing object type SCHEMA_EXPORT/FUNCTION/FUNCTION
Processing object type SCHEMA_EXPORT/PROCEDURE/PROCEDURE
Processing object type SCHEMA_EXPORT/PACKAGE/COMPILE_PACKAGE/PACKAGE_SPEC/ALTER_PACKAGE_SPEC
Processing object type SCHEMA_EXPORT/FUNCTION/ALTER_FUNCTION
Processing object type SCHEMA_EXPORT/PROCEDURE/ALTER_PROCEDURE
Processing object type SCHEMA_EXPORT/PACKAGE/PACKAGE_BODY
Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/REF_CONSTRAINT
Processing object type SCHEMA_EXPORT/TABLE/TRIGGER
. . exported "SYB"."DYSPANGZI" 48.50 KB 659 rows
. . exported "SYB"."ALL_SALES" 13.68 KB 360 rows
中間導出信息省略
. . exported "SYB"."REG_EXPS" 5.437 KB 1 rows
. . exported "SYB"."SALARY_GRADES" 5.710 KB 4 rows
. . exported "SYB"."PRODUCT_PRICE_AUDIT" 0 KB 0 rows
Master table "SYB"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded
******************************************************************************
Dump file set for SYB.SYS_EXPORT_SCHEMA_01 is:
/var/backup/syb.dmp
Job "SYB"."SYS_EXPORT_SCHEMA_01" successfully completed at 18:07:11
導出成功后查看一下剛才創建目錄里邊的內容
[root@dyspangzi var]# cd backup
[root@dyspangzi backup]# ls -l
總計 720
-rw-r--r-- 1 oracle oinstall 3472 04-21 18:07 export.log
-rw-r----- 1 oracle oinstall 729088 04-21 18:07 syb.dmp
多了兩個文件，一個是日志文件一個是導出的數據文件，在導入的時候需要這兩個文件。下面開始導入。
===================================================================================
出現了第一個錯誤
[oracle@dyspangzi ~]$ impdp pangzi/pangzi dumpfile=syb.dmp directory=expdir remap_tablespace=syb:pangzi
Import: Release 10.2.0.1.0 - Production on Saturday, 21 April, 2012 18:45:35
Copyright (c) 2003, 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
ORA-39002: invalid operation
ORA-39070: Unable to open the log file.
ORA-39087: directory name EXPDIR is invalid
出現了錯誤，后來發現這個是因為新用戶pangzi沒有對目錄的讀寫權限造成的，于是加上權限
SQL> grant read,write on directory expdir to pangzi;
授權成功。
==================================================================================
出現了第二個錯誤
[oracle@dyspangzi ~]$ impdp pangzi/pangzi dumpfile=syb.dmp directory=expdir remap_tablespace=syb:pangzi
Import: Release 10.2.0.1.0 - Production on Saturday, 21 April, 2012 18:47:38
Copyright (c) 2003, 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
ORA-31655: no data or metadata objects selected for job
ORA-39154: Objects from foreign schemas have been removed from import
Master table "PANGZI"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
Starting "PANGZI"."SYS_IMPORT_FULL_01": pangzi/******** dumpfile=syb.dmp directory=expdir remap_tablespace=syb:pangzi
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
Job "PANGZI"."SYS_IMPORT_FULL_01" successfully completed at 18:47:41
這個是由于原來的用戶和現在的不一樣了，加上這個參數就好了 remap_schema=syb:pangzi
=====================================================================================================
下面是沒有任何錯誤的導入了
[oracle@dyspangzi ~]$ impdp pangzi/pangzi dumpfile=syb.dmp directory=expdir remap_schema=syb:pangzi remap_tablespace=syb:pangzi
Import: Release 10.2.0.1.0 - Production on Saturday, 21 April, 2012 18:49:24
Copyright (c) 2003, 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
Master table "PANGZI"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
Starting "PANGZI"."SYS_IMPORT_FULL_01": pangzi/******** dumpfile=syb.dmp directory=expdir remap_schema=syb:pangzi remap_tablespace=syb:pangzi
Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA
Processing object type SCHEMA_EXPORT/TABLE/TABLE
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
. . imported "PANGZI"."DYSPANGZI" 48.50 KB 659 rows
. . imported "PANGZI"."ALL_SALES" 13.68 KB 360 rows
中間部分導入信息省略
. . imported "PANGZI"."PURCHASES_WITH_TIMESTAMP" 5.609 KB 1 rows
. . imported "PANGZI"."REG_EXPS" 5.437 KB 1 rows
. . imported "PANGZI"."SALARY_GRADES" 5.710 KB 4 rows
. . imported "PANGZI"."PRODUCT_PRICE_AUDIT" 0 KB 0 rows
Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX
Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
Processing object type SCHEMA_EXPORT/PACKAGE/PACKAGE_SPEC
Processing object type SCHEMA_EXPORT/FUNCTION/FUNCTION
Processing object type SCHEMA_EXPORT/PROCEDURE/PROCEDURE
Processing object type SCHEMA_EXPORT/PACKAGE/COMPILE_PACKAGE/PACKAGE_SPEC/ALTER_PACKAGE_SPEC
Processing object type SCHEMA_EXPORT/FUNCTION/ALTER_FUNCTION
Processing object type SCHEMA_EXPORT/PROCEDURE/ALTER_PROCEDURE
Processing object type SCHEMA_EXPORT/PACKAGE/PACKAGE_BODY
Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/REF_CONSTRAINT
Processing object type SCHEMA_EXPORT/TABLE/TRIGGER
Job "PANGZI"."SYS_IMPORT_FULL_01" successfully completed at 18:49:37
成功導入！！！！
查看默認的表空間
SQL> select table_name,tablespace_name from user_tables;
TABLE_NAME TABLESPACE_NAME
------------------------------ ------------------------------
DYSPANGZI PANGZI
CUSTOMERS PANGZI
PRODUCT_TYPES PANGZI
PRODUCTS PANGZI
PURCHASES PANGZI
EMPLOYEES PANGZI
SALARY_GRADES PANGZI
PURCHASES_WITH_TIMESTAMP PANGZI
PURCHASES_TIMESTAMP_WITH_TZ PANGZI
PURCHASES_WITH_LOCAL_TZ PANGZI
COUPONS PANGZI
TABLE_NAME TABLESPACE_NAME
------------------------------ ------------------------------
PROMOTIONS PANGZI
ORDER_STATUS PANGZI
PRODUCT_CHANGES PANGZI
MORE_PRODUCTS PANGZI
MORE_EMPLOYEES PANGZI
DIVISIONS PANGZI
JOBS PANGZI
EMPLOYEES2 PANGZI
ALL_SALES PANGZI
PRODUCT_PRICE_AUDIT PANGZI
REG_EXPS PANGZI
已選擇22行。
此表空間中沒有索引，所以第一種方法也沒有報錯，如果出現有索引的第一種方法還得增加幾步，等我明天找到周五那個數據再來再著做試驗。
-----------------------------------------------------------
今天特意去公司找來了那天導的數據庫，回來做實驗。采用第一種方法不可行，雖然說可以使用IMP 加indexs參數來導出一些索引，但是導入的時候總有莫名其妙的錯誤，估計還是我沒弄好，所以為了省事還是直接用第二種吧，方便，無錯。