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 expdp encryption_mode tips

Oracle Database Tips by Donald BurlesonMarch 18, 2015

Question:  How do I use the encryption_mode parameter to hide the password in an export job.  I'm using a data pump export (expdp) and I want to hide the password.

Answer:  The Data Pump expdp encryption_mode parameter specifies the type of security and accepts the following values:

  • password:  Required to provide a password to encrypt the dump file

  • transparent:  Requires a wallet to use

  • dual:  Creates a dump file which might be imported using both the above mentioned modes

  • encryption_password:  Is used to provide a password for the dump file and differs between Oracle 10g and 11g. If this parameter is used, then the encryption parameter's default value becomes ALL. If both parameters are omitted, then the encryption parameter is set to NONE. 

In the following example, use all parameters to export data that is encrypted and password provided using the AES256 algorithm mode:

expdp usr1/usr1 dumpfile=dp_dir:test.dmp logfile=dp_dir:test.log encryption=all encryption_mode=password encryption_password=test encryption_algorithm=aes256 tables='tbl_test';

When you try to import the dump file without providing any password, you get the following error:

impdp usr2/usr2 remap_schema=usr1:usr2 dumpfile=dp_dir:test.dmp logfile=dp_dir:log.dmp

ORA-39002: invalid operation
ORA-39174: Encryption password must be supplied.

However, by supplying the correct password, you are able to import the object:

impdp usr2/usr2 remap_schema=usr1:usr2 dumpfile=dp_dir:test.dmp logfile=dp_dir:log.log encryption_password=test

 

 
 
 
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