Subject | RE: [firebird-support] Re: Facing Problems in executing the Select query |
---|---|
Author | Dean Harding |
Post date | 2007-09-04T05:38:44Z |
> > everything is happening within the context of a transaction.What he means is that every statement that you execute in Firebird is done
> > The transaction IDs have to written
> > Alan
> >
> Thanks for your post. But could you please elaborate a little more?
> We are not very clear about this...
in the context of a transaction. That means that stuff needs to be written
to the transaction log for every statement.
However, if you're doing SELECTs on only a couple of tables, it is quite
likely that much of the data that is SELECTed is already in memory, which
means that it won't necessarily have to perform a *read* I/O for every
statement.
Dean.
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