Guenadi N Jilevski's Oracle BLOG

Oracle 11gR2 imp utility

Oracle 11gR2 imp utility

Since Oracle introduced data pump import/export in 10g conventional imp/exp utilities were not added new functionality. I discovered recently that DATA_ONLY option exists in version 11gR2 allowing importing only table data. In older times the same import used to be done with IGNORE=Y and ROWS=Y options instead of DATA_ONLY.

[oracle@oel55 ~]$ imp -help

Import: Release 11.2.0.1.0 – Production on Tue Aug 10 10:03:38 2010

Copyright (c) 1982, 2009, Oracle and/or its affiliates. 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)

DATA_ONLY import only data (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.

[oracle@oel55 ~]$

August 11, 2010 Posted by gjilevski | oracle | Leave a comment