On 5/24/07, Ron Johnson <ron.l.johnson@cox.net> wrote:
> > [2] Nobody else has this, I believe, except possibly Ingres and
> > NonStop SQL. This means you can do a "begin transaction", then issue
> > "create table", "alter table", etc. ad nauseum, and in the mean time
> > concurrent transactions will just work. Beautiful for atomically
> > upgrading a production server. Oracle, of course, commits after each
> > DDL statements.
>
> Rdb/VMS and CODASYL DBMS (both Oracle, formerly DEC, products) also
> have transactional DDL.
Not exactly mainstream databases, and Codasyl isn't even a relational
database as far as I remember.
> Interbase/Firebird probably also has transactional DDL.
Apparently. I'm surprised, given how InterBase and Firebird otherwise
feel so awfully ancient.
All right, so not unique, but very rare.
Alexander.