[Typo3-dev] TYPO3 and native XML Databases

[Sven Wilhelm]

Hi,

> Oracle (and possibly others) have that too.
> But that are "only" XML-extensions of SQL-DBs.
such a mapping from dom-nodes to sql records is possible with every 
database and lacks at the performance. It's not a really nice way of 
storing xml documents, it's a poor solution.


> I imagine that I have a true XML-DB I have a) no tables to select from 
> and b) no SQL at all.
You have XML Documents in so called Collections (see it like 
directories). With XQuery you have a specialed Query Language.

> Perhaps it's possible with DBAL to do some 
> "table-to-realdatastorageentity-mapping" with pseudo-SQL like the 
> PostgreSQL/Oracle-syntax you mentioned.
That is a poor solution too. And it will have a bad performance.
To have a solution the complete Database Abstract Layer would need a 
much more open architecture and a more open view. That would be a 
generalized data access component :) something like a virtual filesystem 
with modules for different types of connections (sql, dav, xml-rpc, 
http,...)

Bad news, the MySQL part would also follow this restrictions and looses 
some performance.


Sven