New to oracle: does imp overwrite all contents in database

does imp overwrite everything in database? can it used to copy over database.

Hello,
does imp overwrite everything in database? can it used to copy over database. Firstly there're 2 kinds of export/import utility:
- *1*. The Original export/import (exp/imp).
- *2*. The DATAPUMP export/import (expdp/impdp) starting with Oracle *10.1*.
With the Original export/import, you cannot remove the contents of the Table and replace it. If you want to Truncate or Drop the Tables before the Import, you have to do it by yourself.
With the DATAPUMP, as previously posted, you have the Parameter TABLE_EXISTS_ACTION which can help to manage automatically several case:
http://download.oracle.com/docs/cd/E11882_01/server.112/e16536/dp_import.htm#SUTIL936
Hope this help.
Best regards,
Jean-Valentin

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