Jochem,
Thanks for the reply. Can I assume that if the isolation level is 
not explicitly stated in the <cftransaction> tag, the isolation 
level defaults to the default setting of the SQL Server (i.e. CF 
does not automatically impose a default isolation level)?

Dave Jones
NetEffect


At 09:49 AM 6/5/03 +0200, you wrote:
>Dave Jones wrote:
> >
> > All of our inserts and updates to this database are wrapped in
> > <cftransaction></cftransaction> tags (due to multiple tables
> > involved in the transactions). We are not explicitly issuing any
> > commits or rollbacks.
> >
> > My questions are:
> > 1) Given our use of <cftransaction>, is it possible that CF is
> > leaving transactions uncommited? I thought CF handled all of that
> > behind the scenes.
>
>Unlikely. IIRC, every open transaction requires an open connection to
>the database. So for you to have 2000 uncommitted transactions, requires
>2000 connections. Not many shared hosts have sufficient licenses to do that.
>
>
> > 2b) And if CF was not committing transactions, wouldn't these
> > transactions not appear in the database? Is the fact that all of
> > our transactions appear in the 'database' (that virtual
> > collection of db, logs and cache) indicate that the transactions
> > are in fact getting committed?
>
>That depends on the isolation level of the transactions. Since MS SQL
>Server uses the default level "read committed", so you can indeed only
>see changes after a commit (or from inside the transaction that makes
>the changes).
>
>Jochem
>
>
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