> 02.04.2014 21:44, Leyne, Sean wrote:
> > I need to extract the data and generate text file -- but I don't need all of
> rows.
> 
>    What's wrong with an ordinary concurrency level transaction then?

I need all of the connections to see the same view of data.  

With "ordinary" transactions, it is possible for the 5th+ of 10 transactions to 
see changes which were committed by a transaction that was started before the 
1st transaction was started -- ie. an inconsistent view of data.  Only if all 
10 transactions are started "at the same moment" can consistency be guaranteed.


Sean


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