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Date: Mon, 13 Jan 2003 18:53:48 -0800
To: Multiple recipients of list ORACLE-L <ORACLE-L@fatcity.com>
X-Comment: Oracle RDBMS Community Forum
X-Sender: "Deshpande, Kirti" <kirti.deshpande@verizon.com>
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From: "Deshpande, Kirti" <kirti.deshpande@verizon.com>
Subject: RE: 2 basic Qs. on export
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Here is my suggestion:

1.
  Use file= and filesize= option (8i Rel 2?) to create multiple disk files, copy them to tape. Reload when  importing. 

2a. 
  Export should not be considered a database backup. (IMHO). In future releases, full=y may not be available. 
2b.
  Depends. If export starts at 10:00 with option consistent=y then no updates after 10:00 will be seen by export. You will get a read consistent image of the database (as of 10:00).  With consistent=n (default), updates to rows not yet read by exp will be included in the exported data.  

There is a good discussion about this in the Oracle8i/9i Utilities Guide. 

- Kirti 



-----Original Message-----
Sent: Monday, January 13, 2003 4:59 PM
To: Multiple recipients of list ORACLE-L



1) Large Export Dumps , if Directly Exported to TAPE Devices , Can Import be safely Done therefrom ?

FILE=<Device name>

OR is it advisable to compress / Split the Export Dump Files onto Storage Box & thereafter backup the Same onto Tape ?


2) With Oracle  8i & 9i 

Does export backup fired at a certain Time take ALL Objects's Data existing as at that point in time ? 

Assuming exp Command is issued to export a Full Database Containing many Tables at 10:00 hours .
Assuming Update is Done to Some Table which is yet to be Exported at 10:01 , 
Will the export backup contain the Updated OR NON-Updated Data ?


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Author: Deshpande, Kirti
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