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uncompress and gunzip

Posted on 2007-11-26
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Hi experts, I did decompress a oracle export file that was compressed with the compress command on unix with gunzip. I used gunzip filename instead of uncompress filename, Will this corrupt my dump file? I need an answer before I start the import. Thank you in advance. It is a dump file made from oracle 817 on hp ux.
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Question by:sharscho
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by:omarfarid
omarfarid earned 125 total points
ID: 20353649
Hi,

I think it is ok since gunzip can uncompress .Z files.
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by:robocat
robocat earned 150 total points
ID: 20353678
gunzip can decompress files compressed with the compress command.
If you get no error messages, everything should be fine.

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David earned 225 total points
ID: 20354136
I agree with the prior comments, and would add for your piece of mind:

1.  Test the compressed file integrity, e.g., "gunzip -t ...".  See man gunzip for further info.
2.  Test the dump file by executing it in test mode, using the import parameter "show=y" and specify an output log.  This will display the DDL without executing it.
3.  It's good practice to ensure your target database is recoverable prior to the change.  At a minimum, export the database with rows=n, indexes=n to grab the existing DDL.

Hope this helps.
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by:sharscho
ID: 20354197
Thank you very much!!
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