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Home -> Community -> Mailing Lists -> Oracle-L -> RE: rollback segments during export
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
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jared Still INET: jkstill_at_cybcon.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Christopher Spence INET: cspence_at_FuelSpot.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Mon Oct 01 2001 - 09:25:30 CDT
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