Oracle10g使用imp命令导出数据为dmp：
imp system/password@orcl file=rd_online_20181102.dmp fromuser=user1 touser=user2
附录：imp命令help
[oracle@dbsrv3 ~]$ imp help=y Import: Release 10.2.0.1.0 - Production on Thu Nov 22 13:19:38 2018 Copyright (c) 1982, 2005, Oracle. All rights reserved. You can let Import prompt you for parameters by entering the IMP command followed by your username/password: Example: IMP SCOTT/TIGER Or, you can control how Import runs by entering the IMP command followed by various arguments. To specify parameters, you use keywords: Format: IMP KEYWORD=value or KEYWORD=(value1,value2,...,valueN) Example: IMP SCOTT/TIGER IGNORE=Y TABLES=(EMP,DEPT) FULL=N or TABLES=(T1:P1,T1:P2), if T1 is partitioned table USERID must be the first parameter on the command line. Keyword Description (Default) Keyword Description (Default) -------------------------------------------------------------------------- USERID username/password FULL import entire file (N) BUFFER size of data buffer FROMUSER list of owner usernames FILE input files (EXPDAT.DMP) TOUSER list of usernames SHOW just list file contents (N) TABLES list of table names IGNORE ignore create errors (N) RECORDLENGTH length of IO record GRANTS import grants (Y) INCTYPE incremental import type INDEXES import indexes (Y) COMMIT commit array insert (N) ROWS import data rows (Y) PARFILE parameter filename LOG log file of screen output CONSTRAINTS import constraints (Y) DESTROY overwrite tablespace data file (N) INDEXFILE write table/index info to specified file SKIP_UNUSABLE_INDEXES skip maintenance of unusable indexes (N) FEEDBACK display progress every x rows(0) TOID_NOVALIDATE skip validation of specified type ids FILESIZE maximum size of each dump file STATISTICS import precomputed statistics (always) RESUMABLE suspend when a space related error is encountered(N) RESUMABLE_NAME text string used to identify resumable statement RESUMABLE_TIMEOUT wait time for RESUMABLE COMPILE compile procedures, packages, and functions (Y) STREAMS_CONFIGURATION import streams general metadata (Y) STREAMS_INSTANTIATION import streams instantiation metadata (N) VOLSIZE number of bytes in file on each volume of a file on tape The following keywords only apply to transportable tablespaces TRANSPORT_TABLESPACE import transportable tablespace metadata (N) TABLESPACES tablespaces to be transported into database DATAFILES datafiles to be transported into database TTS_OWNERS users that own data in the transportable tablespace set Import terminated successfully without warnings.