[Lazarus] What is a TSQLTransaction and why do I need one?

zeljko zeljko at holobit.net
Wed Dec 1 14:17:15 CET 2010


On Wednesday 01 December 2010 13:48, Joost van der Sluis wrote:
> On Tue, 2010-11-30 at 13:14 +0100, zeljko wrote:
> > > I think we should not change a thing, until the problem is clear. Maybe
> > > we can come up with some 'general' transaction-isolation levels. The
> > > reason they are not implemented in a general way is that each DB has
> > > it's own locking-style.
> >
> > Here is nice explanation of isolation levels, "general"
> > transaction-isolation levels should be implemented definitelly.
> > http://en.wikipedia.org/wiki/Isolation_%28database_systems%29
>
> Well, these are tne ansi/sql transacion isolation levels. do you know a
> database which actually uses/supports these? (Except from Oracle)

Yes, PostgreSQL supports all of them.

zeljko




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