What are other thing should i consider using expdp and impdp

Question

(11g express) r2 windows 2008 and also xp ( i installed it at two places for testing.)
i wanted to make backup of one schema
so i used expdp
please tel me is it ok or is there any thing more reliable to make backup of a schema and import(impdp) of a schema to any oracle database.
from window prompt
MKDIR c:\oraclexe\app\tmp
from sql plus
sqlplus SYSTEM/password
CREATE OR REPLACE DIRECTORY dmpdir AS ’c:\oraclexe\app\tmp’;
GRANT READ,WRITE ON DIRECTORY dmpdir TO hr;
from windows command line.
expdp SYSTEM/password SCHEMAS=hr DIRECTORY=dmpdir DUMPFILE=schema.dmp
LOGFILE=expschema.log
then following to import
impdp SYSTEM/password SCHEMAS=hr DIRECTORY=dmpdir DUMPFILE=schema.dmp
REMAP_SCHEMA=hr:hrdev EXCLUDE=constraint, ref_constraint, index
TABLE_EXISTS_ACTION=replace LOGFILE=impschema.log
2) pls tel me should i consider any thing else while exporting or importing.
3) i have removed EXCLUDE=constraint, ref_constraint, index because i need constrainta index etc.
so pls tel me why in documentation it is written.
yours sincerely
Edited by: 944768 on Mar 31, 2013 2:02 AM

Answer 1

Hi,
Yes, you can (should) remove exclude parameter if you like import all objects from export.
Here is example how you export full schema
expdp SYSTEM/password SCHEMAS=hr DIRECTORY=dmpdir DUMPFILE=hr.dmp LOGFILE=exp_hr.logAnd import it to another database
impdp SYSTEM/password SCHEMAS=hr DIRECTORY=dmpdir DUMPFILE=hr.dmp LOGFILE=imp_hr.logPlease note that you need create directory dmpdir to target database also.
Regards,
Jari
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