Once I tried the same thing, three tables, each in one databse, mapped to a
single class. Instead of getting an error, d2r was yielding inconsistent
results and tried to join tables in a single query.
I asked Richard, and he confirmed that d2r isn't suited to map more than
one database at once... Even two tables in the same database mapping to a
single class would not work properly.
Check teiid to consolidate your databases first, then map it to d2r, my
suggestion. I'm working with database integration in my phd thesis, so
contact me if you want.
Cheers
On Tuesday, June 25, 2013, Salvatore Alessi wrote:
> Hi,
>
> I use d2rq 0.8.1 and I tried to map 3 databases in one ttl file. It works
> normally, but when i tried to create a ObjectProperty with two classes
> stored in different databases, I receive this error:
>
> HTTP ERROR 500
>
> Problem accessing /. Reason:
> d2rq:PropertyBridge map:cadastralUnit_hasAddress links two
> d2rq:ClassMaps with different d2rq:dataStorages (E24)
>
>
> I found a previous post but nobody responds. I think that there is a
> solution because it's strange it allows the mapping of multiple database
> without linking them.
>
> how can I solve it?
>
> Thanks in advance.
>
--
--
diogo patrão
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