今天使用impdp实施数据导入时遭遇ORA-31631、ORA-39122报错，如下所示：
C:Documents and Settingshoegh>impdp hoegh/hoegh directory=data_pump_directory
dumpfile=hoegh.dmp remap_schema=hoeghfrom:hoegh remap_tablespace=hoeghfromtbs:hoeghtbs
Import: Release 10.1.0.2.0 - Production on 星期六, 10 10月, 2015 9:49
Copyright (c) 2003, Oracle. All rights reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Produc
tion
With the Partitioning, OLAP and Data Mining options
ORA-31631: privileges are required
ORA-39122: Unprivileged users may not perform REMAP_SCHEMA remappings.
C:Documents and Settingshoegh>
从报错提示信息来看，是权限不足造成的。通过查阅文档得知，当执行impdp操作指定remap_schema参数时，需要具备imp_full_database权限。接下来，我们给hoegh用户赋予imp_full_database权限。
SQL>
SQL> grant imp_full_database to hoegh;
Grant succeeded.
SQL>
授权成功后，再次执行impdp语句，成功。
C:Documents and Settingshoegh>
C:Documents and Settingshoegh>impdp hoegh/hoegh directory=data_pump_directory
dumpfile=hoegh.dmp remap_schema=hoeghfrom:hoegh remap_tablespace=hoeghfromtbs:hoeghtbs
Import: Release 10.1.0.2.0 - Production on 星期六, 10 10月, 2015 9:54
Copyright (c) 2003, Oracle. All rights reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Produc
tion
With the Partitioning, OLAP and Data Mining options
Master table "HOEGH"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
Starting "HOEGH"."SYS_IMPORT_FULL_01": HOEGH/******** directory=data_pump_directo
ry dumpfile=hoegh.dmp remap_schema=hoeghfrom:hoegh remap_tablespace=hoeghfromtbs:hoeghtbs
Processing object type TABLE_EXPORT/TABLE/TABLE
Processing object type TABLE_EXPORT/TABLE/INDEX/INDEX
Processing object type TABLE_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
Processing object type TABLE_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
Processing object type TABLE_EXPORT/TABLE/INDEX/FUNCTIONAL_AND_BITMAP/INDEX
Processing object type TABLE_EXPORT/TABLE/INDEX/STATISTICS/FUNCTIONAL_AND_BITMAP
/INDEX_STATISTICS
Processing object type TABLE_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
Job "HOEGH"."SYS_IMPORT_FULL_01" successfully completed at 09:54
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