数据泵导出文件更换名称，对导入操作无影响
问题描述： expdp 导出 dmp文件 ，但是导出操作时，dmp文件命名有误。 mv将导出后的dmp文件重命名。这样对 impdp 操作会有什么影响呢？
结论： 只要命令敲对，文件名写正确，impdp操作不受影响
一、模拟开始
scott用户下的表
新建用户liuyaya下的表
数据泵导出scott用户下的表
修改dumpfile文件名
导入到新建用户liuyaya
二、 总结
将改了名字的dmp文件顺利导入到其他schema下，证明
数据库导出文件可以改名字，对导入操作无影响
名称栏目：数据泵导出文件更换名称，对导入操作无影响
网址分享：http://shouzuofang.com/article/ihichd.html
结论： 只要命令敲对，文件名写正确，impdp操作不受影响
一、模拟开始
scott用户下的表
点击(此处)折叠或打开
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SQL> conn scott/tiger
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Connected.
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SQL>
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SQL> select count(*) from tab;
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COUNT(*)
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----------
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4
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SQL> select * from tab;
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TNAME TABTYPE CLUSTERID
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------------------------------ ------- ----------
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BONUS TABLE
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DEPT TABLE
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EMP TABLE
- SALGRADE TABLE
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SQL> conn / as sysdba
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Connected.
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SQL>
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SQL>
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SQL> create user liuyaya identified by oracle account unlock;
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User created.
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SQL> SQL>
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SQL>
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SQL>
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SQL> grant connect,resource to liuyaya;
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Grant succeeded.
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SQL>
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SQL> conn liuyaya/oracle
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Connected.
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SQL> select count(1) from tab;
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COUNT(1)
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- 0
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SQL> conn sys/oracle as sysdba
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Connected.
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SQL> create or replace directory expdp_dir_scott01 as '/soft';
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Directory created.
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SQL> grant read,write on directory expdp_dir_scott01 to scott;
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Grant succeeded.
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- SQL> exit
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[oracle@redhat6 ~]$ expdp scott/tiger directory=expdp_dir_scott01 schemas=scott datafile=scott01.dmp logfile=scott01.log parallel=2;
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LRM-00101: unknown parameter name 'datafile'
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[oracle@redhat6 ~]$ expdp scott/tiger directory=expdp_dir_scott01 schemas=scott dumpfile=scott01.dmp logfile=scott01.log parallel=2;
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Export: Release 11.2.0.4.0 - Production on Thu Jun 21 19:15:52 2018
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Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
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Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
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With the Partitioning, OLAP, Data Mining and Real Application Testing options
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Starting "SCOTT"."SYS_EXPORT_SCHEMA_01": scott/******** directory=expdp_dir_scott01 schemas=scott dumpfile=scott01.dmp logfile=scott01.log parallel=2
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Estimate in progress using BLOCKS method...
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Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
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Total estimation using BLOCKS method: 192 KB
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. . exported "SCOTT"."DEPT" 5.929 KB 4 rows
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Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA
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. . exported "SCOTT"."EMP" 8.562 KB 14 rows
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. . exported "SCOTT"."SALGRADE" 5.859 KB 5 rows
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. . exported "SCOTT"."BONUS" 0 KB 0 rows
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Processing object type SCHEMA_EXPORT/TABLE/TABLE
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Processing object type SCHEMA_EXPORT/TABLE/COMMENT
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Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX
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Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
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Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
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Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/REF_CONSTRAINT
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Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
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Master table "SCOTT"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded
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******************************************************************************
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Dump file set for SCOTT.SYS_EXPORT_SCHEMA_01 is:
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/soft/scott01.dmp
- Job "SCOTT"."SYS_EXPORT_SCHEMA_01" successfully completed at Thu Jun 21 19:16:13 2018 elapsed 0 00:00:20
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[oracle@redhat6 ~]$ cd /soft
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[oracle@redhat6 soft]$ ls
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database scott01.dmp scott01.log zjgd_back
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[oracle@redhat6 soft]$ mv scott01.dmp liuyaya.dmp
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[oracle@redhat6 soft]$ ls
- database liuyaya.dmp scott01.log zjgd_back
导入到新建用户liuyaya
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[oracle@redhat6 soft]$ impdp \'/ as sysdba\' directory=expdp_dir_scott01 dumpfile=liuyaya.dmp remap_schema=scott:liuyaya logfile=liuyaya.log parallel=2
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Import: Release 11.2.0.4.0 - Production on Thu Jun 21 20:18:01 2018
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Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
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Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
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With the Partitioning, OLAP, Data Mining and Real Application Testing options
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Master table "SYS"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
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Starting "SYS"."SYS_IMPORT_FULL_01": "/******** AS SYSDBA" directory=expdp_dir_scott01 dumpfile=liuyaya.dmp remap_schema=scott:liuyaya logfile=liuyaya.log parallel=2
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Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA
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Processing object type SCHEMA_EXPORT/TABLE/TABLE
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Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
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. . imported "LIUYAYA"."DEPT" 5.929 KB 4 rows
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. . imported "LIUYAYA"."EMP" 8.562 KB 14 rows
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. . imported "LIUYAYA"."SALGRADE" 5.859 KB 5 rows
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. . imported "LIUYAYA"."BONUS" 0 KB 0 rows
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Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX
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Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
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Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
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Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/REF_CONSTRAINT
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Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
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Job "SYS"."SYS_IMPORT_FULL_01" successfully completed at Thu Jun 21 20:18:05 2018 elapsed 0 00:00:02
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[oracle@redhat6 soft]$ sqlplus liuyaya/oracle
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SQL*Plus: Release 11.2.0.4.0 Production on Thu Jun 21 20:18:18 2018
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Copyright (c) 1982, 2013, Oracle. All rights reserved.
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Connected to:
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Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
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With the Partitioning, OLAP, Data Mining and Real Application Testing options
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SQL> select * from tab;
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TNAME TABTYPE CLUSTERID
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------------------------------ ------- ----------
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BONUS TABLE
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DEPT TABLE
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EMP TABLE
- SALGRADE TABLE
二、 总结
将改了名字的dmp文件顺利导入到其他schema下，证明
数据库导出文件可以改名字，对导入操作无影响
名称栏目：数据泵导出文件更换名称，对导入操作无影响
网址分享：http://shouzuofang.com/article/ihichd.html