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RE: rollback segments during export

From: Christopher Spence <cspence_at_FuelSpot.com>
Date: Mon, 01 Oct 2001 07:25:30 -0700
Message-ID: <F001.0039D513.20011001060018@fatcity.com>

Yes, under CONSISTENT=N they are exported as separate transactions, under CONSISTENT=Y it is a large single transaction to keep read consistency across the entire export. Hence the redo generated is similar to a large report and read consistent views.

"Do not criticize someone until you walked a mile in their shoes, that way when you criticize them, you are a mile a way and have their shoes."

Christopher R. Spence
Oracle DBA
Phone: (978) 322-5744
Fax: (707) 885-2275

Fuelspot
73 Princeton Street
North, Chelmsford 01863  

-----Original Message-----
Sent: Sunday, September 30, 2001 3:40 AM To: Multiple recipients of list ORACLE-L

Chris,

> Just because there is a PK/FK between tables, it does not mean they will
be
> exported in the same transaction. And thus, possibly out of sync.

I didn't say there was. My implication was that your tables would get out of sync. Setting 'consistent=y' won't prevent that:

: If you specify CONSISTENT=N (the default), each table is usually exported : in a single transaction. However, if a table contains nested tables, th

Now it *could* be that I'm misreading the docs. It' been known to happen, but that sentence says to me that each table is exported as part of a single transaction.

Anyone have proof to the contrary? The tech writer is being rather ambigous, at least I think so.

Jared

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Received on Mon Oct 01 2001 - 09:25:30 CDT

Original text of this message

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