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原创 Linux操作系统 作者:liu_qingwei2008 时间:2011-04-28 14:26:21 0 删除 编辑
$ impdp -help
Import: Release - 64bit Production on Thursday, 28 April, 2011 14:20:21
Copyright (c) 2003, 2007, Oracle.  All rights reserved.

The Data Pump Import utility provides a mechanism for transferring data objects
between Oracle databases. The utility is invoked with the following command:
     Example: impdp scott/tiger DIRECTORY=dmpdir DUMPFILE=scott.dmp
You can control how Import runs by entering the 'impdp' command followed
by various parameters. To specify parameters, you use keywords:
     Format:  impdp KEYWORD=value or KEYWORD=(value1,value2,...,valueN)
     Example: impdp scott/tiger DIRECTORY=dmpdir DUMPFILE=scott.dmp
USERID must be the first parameter on the command line.
Keyword               Description (Default)
ATTACH                Attach to existing job, e.g. ATTACH [=job name].
CONTENT               Specifies data to load where the valid keywords are:
                      (ALL), DATA_ONLY, and METADATA_ONLY.
DATA_OPTIONS          Data layer flags where the only valid value is:
                      SKIP_CONSTRAINT_ERRORS-constraint errors are not fatal.
DIRECTORY             Directory object to be used for dump, log, and sql files.
DUMPFILE              List of dumpfiles to import from (expdat.dmp),
                      e.g. DUMPFILE=scott1.dmp, scott2.dmp, dmpdir:scott3.dmp.
ENCRYPTION_PASSWORD   Password key for accessing encrypted column data.
                      This parameter is not valid for network import jobs.
ESTIMATE              Calculate job estimates where the valid keywords are:
                      (BLOCKS) and STATISTICS.
EXCLUDE               Exclude specific object types, e.g. EXCLUDE=TABLE:EMP.
FLASHBACK_SCN         SCN used to set session snapshot back to.
FLASHBACK_TIME        Time used to get the SCN closest to the specified time.
FULL                  Import everything from source (Y).
HELP                  Display help messages (N).
INCLUDE               Include specific object types, e.g. INCLUDE=TABLE_DATA.
JOB_NAME              Name of import job to create.
LOGFILE               Log file name (import.log).
NETWORK_LINK          Name of remote database link to the source system.
NOLOGFILE             Do not write logfile.
PARALLEL              Change the number of active workers for current job.
PARFILE               Specify parameter file.
PARTITION_OPTIONS     Specify how partitions should be transformed where the
                      valid keywords are: DEPARTITION, MERGE and (NONE)
QUERY                 Predicate clause used to import a subset of a table.
REMAP_DATA            Specify a data conversion function,
                      e.g. REMAP_DATA=EMP.EMPNO:REMAPPKG.EMPNO
REMAP_DATAFILE        Redefine datafile references in all DDL statements.
REMAP_SCHEMA          Objects from one schema are loaded into another schema.
REMAP_TABLE           Table names are remapped to another table,
                      e.g. REMAP_TABLE=EMP.EMPNO:REMAPPKG.EMPNO.
REMAP_TABLESPACE      Tablespace object are remapped to another tablespace.
REUSE_DATAFILES       Tablespace will be initialized if it already exists (N).
SCHEMAS               List of schemas to import.
SKIP_UNUSABLE_INDEXES Skip indexes that were set to the Index Unusable state.
SQLFILE               Write all the SQL DDL to a specified file.
STATUS                Frequency (secs) job status is to be monitored where
                      the default (0) will show new status when available.
STREAMS_CONFIGURATION Enable the loading of Streams metadata
TABLE_EXISTS_ACTION   Action to take if imported object already exists.
                      Valid keywords: (SKIP), APPEND, REPLACE and TRUNCATE.
TABLES                Identifies a list of tables to import.
TABLESPACES           Identifies a list of tablespaces to import.
TRANSFORM             Metadata transform. to apply to applicable objects.
                      Valid transform. keywords: SEGMENT_ATTRIBUTES, STORAGE,
                      OID, and PCTSPACE.
TRANSPORTABLE         Options for choosing  transportable data movement.
                      Valid keywords: ALWAYS and (NEVER).
                      Only valid in NETWORK_LINK mode import operations.
TRANSPORT_DATAFILES   List of datafiles to be imported by transportable mode.
TRANSPORT_FULL_CHECK  Verify storage segments of all tables (N).
TRANSPORT_TABLESPACES List of tablespaces from which metadata will be loaded.
                      Only valid in NETWORK_LINK mode import operations.
VERSION               Version of objects to export where valid keywords are:
                      (COMPATIBLE), LATEST, or any valid database version.
                      Only valid for NETWORK_LINK and SQLFILE.
The following commands are valid while in interactive mode.
Note: abbreviations are allowed
Command               Description (Default)
CONTINUE_CLIENT       Return to logging mode. Job will be re-started if idle.
EXIT_CLIENT           Quit client session and leave job running.
HELP                  Summarize interactive commands.
KILL_JOB              Detach and delete job.
PARALLEL              Change the number of active workers for current job.
START_JOB             Start/resume current job.
                      START_JOB=SKIP_CURRENT will start the job after skipping
                      any action which was in progress when job was stopped.
STATUS                Frequency (secs) job status is to be monitored where
                      the default (0) will show new status when available.
STOP_JOB              Orderly shutdown of job execution and exits the client.
                      STOP_JOB=IMMEDIATE performs an immediate shutdown of the
                      Data Pump job.

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