On Mon, 22 Jan 2001, Zeugswetter Andreas SB wrote:
>
> > Is anyone looking at doing this? Is this purely a MySQL-ism, or is it
> > something that everyone else has except us?
>
> We should not only support access to all db's under one postmaster,
> but also remote access to other postmaster's databases.
> All biggie db's allow this in one way or another (synonyms,
> qualified object names) including 2-phase commit.
> Ideally this includes access to other db manufacturers, flat files, bdb ...
> Meaning, that this is a problem needing a generic approach.
Of course, a generic, powerful approach would be great.
However, a simple, limited approach would a be solution for (I
suspect) 97% of the cases, which is that one software package creates a
database to store mailing list names, and another creates a database to
store web permissions, and you want to write a query that encompasses
both, w/o semi-tedious COPY TO FILEs to temporarily move a table back and
forth. And of course, a simple solution might be completed faster :-)
How could this be handled?
* a syntax for db-table names, such as mydb.myfield or something like
that. (do we have any unused punctuation? :-) )
* aliases, so that tblFoo in dbA can be called as ToFoo in dbB
* other ways?
The second might be easier from a conversion view: the user wouldn't have
to understand that this was a 'link', but it might prove complicated when
there are many links to keep track of, etc.
--
Joel Burton <jburton@scw.org>
Director of Information Systems, Support Center of Washington
