--- In firebird-support@yahoogroups.com, "unordained"
<unordained_00@c...> wrote:

> The main difference between the two is the concurrency of child

transactions. With sub-

> transactions, you could initiate multiple sub-transactions and work

on all of them simultaneously.

Sorry, but in this sense I don't understand why do you need
_sub_transactions. This is exactly the way of usage of transactions.

Best regards,
Alexander.