Re: ODBC Over WAN Sylvain,
Thank you for you response...
David
"Sylvain Lafontaine" wrote:
> Not really. Can be true if you are accessing an Access database (MDB or
> ACCDB database file) as the backend without using a remote desktop solution
> such as Terminal Server or Thinsoft. In the case of SQL-Server, it's false
> in all cases; excerpt maybe for the case of logical corruption if you don't
> use transaction. However, if you don't use transaction, the possibility of
> getting logical corruption would exist even in the cases where you wouldn't
> be on the WAN.
>
> A logical corruption is a situation where each of the individual records in
> the database are physically OK but the relation between them is not; for
> example when some of the details of an order are missing. Transactions are
> used to keep the database in a logically coherent state; even in the case of
> a communication failure. (BTW, this doesn't mean that all transactions will
> necessarily succeed and that you cannot lose some information.)
>
> Of course, even with the use of transactions, there is still the possibility
> of getting corruption in the dabase file(s) because of an I/O problem or
> other physical problem but this situation exists wheither you are on the WAN
> or not.
>
> Maybe your consultant was thinking about the possibility of losing some
> information in case of a communication failure (for example, you start
> entering an order but the communication if lost before you have time to
> finish it) but even to this problem, there are solutions.
>
> --
> Sylvain Lafontaine, ing.
> MVP - Technologies Virtual-PC
> E-mail: sylvain aei ca (fill the blanks, no spam please)
>
>
> "David" <David@discussions.microsoft.com> wrote in message
> news:ABF6A633-2692-4367-BD89-8AE0B8E35227@microsoft.com...
> >I have been told by our consultant that we cannot access our SQL Server
> >over
> > the WAN without corrupting our data, is this true?
> >
> > Thanks for any help,
> > David
>
>
> |