impdp -help
Import: Release 19.0.0.0.0 – Production on Thu May 4 01:44:31 2023
Version 19.16.0.0.0
Copyright (c) 1982, 2019, Oracle and/or its affiliates. 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.
The available keywords and their descriptions follow. Default values are listed within square brackets.
ABORT_STEP
Stop the job after it is initialized or at the indicated object.
Valid values are -1 or N where N is zero or greater.
N corresponds to the object’s process order number in the master table.
ACCESS_METHOD
Instructs Import to use a particular method to load data.
Valid keyword values are: [AUTOMATIC], CONVENTIONAL, DIRECT_PATH,
EXTERNAL_TABLE, and INSERT_AS_SELECT.
ATTACH
Attach to an existing job.
For example, ATTACH=job_name.
CLUSTER
Utilize cluster resources and distribute workers across the Oracle RAC [YES].
CONTENT
Specifies data to load.
Valid keywords are: [ALL], DATA_ONLY and METADATA_ONLY.
DATA_OPTIONS
Data layer option flags.
Valid keywords are: DISABLE_APPEND_HINT, ENABLE_NETWORK_COMPRESSION,
REJECT_ROWS_WITH_REPL_CHAR, SKIP_CONSTRAINT_ERRORS, CONTINUE_LOAD_ON_FORMAT_ERROR,
TRUST_EXISTING_TABLE_PARTITIONS and VALIDATE_TABLE_DATA.
DIRECTORY
Directory object to be used for dump, log and SQL files.
DUMPFILE
List of dump files to import from [expdat.dmp].
For example, DUMPFILE=scott1.dmp, scott2.dmp, dmpdir:scott3.dmp.
ENCRYPTION_PASSWORD
Password key for accessing encrypted data within a dump file.
Not valid for network import jobs.
ENCRYPTION_PWD_PROMPT
Specifies whether to prompt for the encryption password [NO].
Terminal echo is suppressed while standard input is read.
ESTIMATE
Calculate network job estimates.
Valid keywords are: [BLOCKS] and STATISTICS.
EXCLUDE
Exclude specific object types.
For example, EXCLUDE=SCHEMA:”=’HR'”.
FLASHBACK_SCN
SCN used to reset session snapshot.
FLASHBACK_TIME
Time used to find the closest corresponding SCN value.
FULL
Import everything from source [YES].
HELP
Display help messages [NO].
INCLUDE
Include specific object types.
For example, INCLUDE=TABLE_DATA.
JOB_NAME
Name of import job to create.
KEEP_MASTER
Retain the master table after an import job that completes successfully [NO].
LOGFILE
Log file name [import.log].
LOGTIME
Specifies that messages displayed during import operations be timestamped.
Valid keyword values are: ALL, [NONE], LOGFILE and STATUS.
MASTER_ONLY
Import just the master table and then stop the job [NO].
METRICS
Report additional job information to the import log file [NO].
NETWORK_LINK
Name of remote database link to the source system.
NOLOGFILE
Do not write log file [NO].
PARALLEL
Change the number of active workers for current job.
PARFILE
Specify parameter file.
PARTITION_OPTIONS
Specify how partitions should be transformed.
Valid keywords are: DEPARTITION, MERGE and [NONE].
QUERY
Predicate clause used to import a subset of a table.
For example, QUERY=employees:”WHERE department_id > 10″.
REMAP_DATA
Specify a data conversion function.
For example, REMAP_DATA=EMP.EMPNO:REMAPPKG.EMPNO.
REMAP_DATAFILE
Redefine data file 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.
For example, REMAP_TABLE=HR.EMPLOYEES:EMPS.
REMAP_TABLESPACE
Tablespace objects are remapped to another tablespace.
REUSE_DATAFILES
Tablespace will be initialized if it already exists [NO].
SCHEMAS
List of schemas to import.
SERVICE_NAME
Name of an active service and associated resource group to constrain Oracle RAC resources.
SKIP_UNUSABLE_INDEXES
Skip indexes that were set to the Index Unusable state.
SOURCE_EDITION
Edition to be used for extracting metadata.
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 [YES].
TABLE_EXISTS_ACTION
Action to take if imported object already exists.
Valid keywords are: APPEND, REPLACE, [SKIP] and TRUNCATE.
TABLES
Identifies a list of tables to import.
For example, TABLES=HR.EMPLOYEES,SH.SALES:SALES_1995.
TABLESPACES
Identifies a list of tablespaces to import.
TARGET_EDITION
Edition to be used for loading metadata.
TRANSFORM
Metadata transform to apply to applicable objects.
Valid keywords are: DISABLE_ARCHIVE_LOGGING, INMEMORY, INMEMORY_CLAUSE,
LOB_STORAGE, OID, PCTSPACE, SEGMENT_ATTRIBUTES, SEGMENT_CREATION,
STORAGE, and TABLE_COMPRESSION_CLAUSE.
TRANSPORTABLE
Options for choosing transportable data movement.
Valid keywords are: ALWAYS and [NEVER].
Only valid in NETWORK_LINK mode import operations.
TRANSPORT_DATAFILES
List of data files to be imported by transportable mode.
TRANSPORT_FULL_CHECK
Verify storage segments of all tables [NO].
Only valid in NETWORK_LINK mode import operations.
TRANSPORT_TABLESPACES
List of tablespaces from which metadata is loaded.
Only valid in NETWORK_LINK mode import operations.
VERSION
Version of objects to import.
Valid keywords are: [COMPATIBLE], LATEST, or any valid database version.
Only valid for NETWORK_LINK and SQLFILE.
VIEWS_AS_TABLES
Identifies one or more views to be imported as tables.
For example, VIEWS_AS_TABLES=HR.EMP_DETAILS_VIEW.
Note that in network import mode, a table name is appended
to the view name.
The following commands are valid while in interactive mode.
Note: abbreviations are allowed.
CONTINUE_CLIENT
Return to logging mode. Job will be restarted 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 or resume current job.
Valid keywords are: SKIP_CURRENT.
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.
Valid keywords are: IMMEDIATE.
STOP_WORKER
Stops a hung or stuck worker.
TRACE
Set trace/debug flags for the current job.
