Question: I am trying to take a 10g export
file and import it into Oracle 11g.
How do I use the Oracle11g
Data Pump impdp import with a dmp file that was created from Oracle
10g?
Answer: While there is never a
guarantee that an later release expdp dmp file will import into an
earlier release of Oracle (this is called "forward compatibility",
impossible because Oracle can never know about future enhancements)
and are indeed cases where you can export from a later release of
Oracle and import into an earlier release.
For full secrets and tips for exporting and importing between
releases, see the book
Advanced Oracle Utilities: The Definitive Reference.
In some cases an older export is indeed backward compatible to a
newer release:
-
Export with exp and import using the impdp Data Pump Utility (exp
from 8i and 9i to 10g and 11g).
- Using the version parameter in Data Pump.
Export/Import between different releases of
Oracle
Oracle Data Pump was first released in Oracle 10g (expdp and impdp).
Priot to Data Pump, Oracle used the "exp" and "imp" utilities.
In your case, both the export (expdp) and import (impdp) are with
Data Pump and you can use the version [parameter to export from a
later release of Oracle an import that dump file into an earlier
release of Oracle.
You can import your 11g expdp dump file into Oracle 10g if you
make sure you use "VERSION=10.2" parameter during export.
Here is a working example of using the expdp version parameter to
make a dump file acceptable to an earlier release of Oracle:
Export using the
expdp version parameter:
C:\Users\Steve>expdp
hr/hr TABLES=hr.employees2 VERSION=10.2 DIRECTORY=data_pump_dir
DUMPFILE=emp2.dmp LOGFILE=emp2.log
Export: Release 11.2.0.1.0
- Production on Tue Sep 7 09:10:51 2015
Copyright (c) 1982, 2015,
Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle
Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the
Partitioning, OLAP, Data Mining and Real Application Testing options
Starting "HR"."SYS_EXPORT_TABLE_01": hr/********
TABLES=hr.employees2 VERSION=10.2 DIRECTORY=data_pump_dir
DUMPFILE=emp2.dmp LOGFILE=emp2.log
Estimate in progress using BLOCKS
method...
Processing
object type TABLE_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 64 KB
Processing object type TABLE_EXPORT/TABLE/TABLE
. . exported "HR"."EMPLOYEES2"
16.12 KB 107 rows
Master table "HR"."SYS_EXPORT_TABLE_01"
successfully loaded/unloaded
******************************************************************************
Dump file set for HR.SYS_EXPORT_TABLE_01
is:
C:\APP\ORACLE\ADMIN\ORCL\DPDUMP\EMP2.DMP
Job "HR"."SYS_EXPORT_TABLE_01"
successfully completed at 09:11:01
Import into earlier release of Oracle:
Here we copied the dmp file from the 11g directory to the 10g
dump file location and execute expdp on the 10g instance:
DIRECTORY_NAME
DIRECTORY_PATH
------------------------------
----------------------------------------
DATA_PUMP_DIR C:\oraclexe\app\oracle\admin\XE\dpdump\
ORACLECLRDIR
C:\oraclexe\app\oracle\product\10.2.0\se
rver\bin\clr
SQL> grant read, write on
directory data_pump_dir to hr;
Grant succeeded.
SQL> exit
Disconnected from Oracle
Database 10g Express Edition Release 10.2.0.1.0 - Production
C:\Users\Steve>impdp hr/hr
TABLES=hr.employees2 DIRECTORY=data_pump_dir DUMPFILE=emp2.dmp
LOGFILE=emp2_imp.log
Import: Release 10.2.0.1.0 - Production on
Tuesday, 07 September, 2015 9:25:53
Copyright (c) 2003, 2005,
Oracle. All rights reserved.
Connected to: Oracle
Database 10g Express Edition Release 10.2.0.1.0 - Production
Master table "HR"."SYS_IMPORT_TABLE_01"
successfully loaded/unloaded
Starting "HR"."SYS_IMPORT_TABLE_01": hr/********
TABLES=hr.employees2 DIRECTORY=data_pump_dir DUMPFILE=emp2.dmp
LOGFILE=emp2_imp.log
Processing object type TABLE_EXPORT/TABLE/TABLE
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
. . imported "HR"."EMPLOYEES2"
16.12 KB 107 rows
Job "HR"."SYS_IMPORT_TABLE_01"
successfully completed at 09:26:05
C:\Users\Steve>sqlplus hr/hr
SQL*Plus: Release
10.2.0.1.0 - Production on Tue Sep 7 09:26:37 2015
Copyright (c) 1982, 2005,
Oracle. All rights reserved.
Connected to:
Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production
SQL> select count(*) from
employees2;
COUNT(*)
----------
107
 |
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