Обсуждение: transactions

1/ Does a procedure take place all in one transaction?

2/ If I am updating/deleting/inserting into two tables, and both tables have triggers on them to
check the relationship of the data between the tables, any way of knowing which trigger will fire
first at the  end of the transaction?

Dennis Gearon <gearond@cvc.net> writes:

> 1/ Does a procedure take place all in one transaction?

Yes.  If you're not using BEGIN/END explicitly each query is its own
transaction.

> 2/ If I am updating/deleting/inserting into two tables, and both tables have triggers on them to
> check the relationship of the data between the tables, any way of knowing which trigger will fire
> first at the  end of the transaction?

I'm not sure about this one--do the docs say anything?

-Doug

On Fri, 2003-02-21 at 18:26, Doug McNaught wrote:
> Dennis Gearon <gearond@cvc.net> writes:

> > 2/ If I am updating/deleting/inserting into two tables, and both tables have triggers on them to
> > check the relationship of the data between the tables, any way of knowing which trigger will fire
> > first at the  end of the transaction?
>
> I'm not sure about this one--do the docs say anything?

In 7.3, I believe triggers fire in alphabetical order.  There was no
predictable order in earlier versions.

--
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight, UK                             http://www.lfix.co.uk/oliver
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