Comments on: Using Block Dumps to Read Uncommited Transactions

By: Christo Kutrovsky

Christo Kutrovsky — Thu, 21 Jun 2007 23:01:35 +0000

Alex Gorbachev,

Yes it was already rolling back, and we do not know the sequence of events that would cause this to happen, until it has happened.

Even thow logminer sounds easy, this is audited environment, and any new installations (even table creations) need to be approved.

By: Christo Kutrovsky

Christo Kutrovsky — Thu, 21 Jun 2007 23:00:19 +0000

Alex Fatkulin,

Altought you can see uncomitted transactions in flashback_transaction_query, you cant see what data they had. For example, on a insert you only see “insert” without the values. It does have the “undo” sql, but in the case of insert it only has “delete”.

By: Alex Fatkulin

Alex Fatkulin — Thu, 21 Jun 2007 21:21:30 +0000

And on 10G you don’t even need to setup anything:

select * from flashback_transaction_query

By: Alex Gorbachev

Alex Gorbachev — Thu, 21 Jun 2007 15:36:13 +0000

Nice idea but I think LogMiner would be quick and easy method as well (and I suspect even easier, at least for me).
If I understood correctly, we couldn’t really trace it right? It was already rolling back.