Re: JDO comparisons

Eric Samson schrieb:
>
> Robert Klemme <robert.klemme_at_myview.de> wrote in message news:<3C6D461D.E648987A_at_myview.de>...
> > Eric Samson schrieb:
> > > Also JDO defines a Query Language embedded with Java.
> >
> > ... which is VERY limited at the moment. for example: you cannot
> > query maps, only simple collections.
> How do you simply QUERY MAPS with JDBC ?
> How do you deal with simple collections or inheritance ?

collections and maps is exactly the stuff where RDBMS shine. that's what they are build and optimized for. a table with two or more columns representing an association (or a map if you like) can be easily queried by a select statement. and you can narrow output down to exactly that portion of the map you want.

        robert

-- 
Robert Klemme
Software Engineer
-------------------------------------------------------------
myview technologies GmbH & Co. KG
Riemekestraße 160 ~ D-33106 Paderborn ~ Germany
E-Mail: mailto:robert.klemme_at_myview.de
Telefon: +49/5251/69090-321 ~ Fax: +49/5251/69090-399
-------------------------------------------------------------