How to define namespace with one XSD using in two different DB-Locations ?

Question

I'm not clear,How to define namespace, targetnamespace, schemaLocation or NoNamespaceSchemaLocation
when using one common schema.xsd-definition
in two different database-locations for exchange xml-documents?
when insert xml-document I've got an error ORA-30937
do you have an good exsample ?
thanks
Norbert
schema :
<xs:schema
xmlns="http://sourcehost.com/namespace"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:oraxdb="http://xmlns.oracle.com/xdb"
targetNamespace="http://sourcehost.com/namespace"
xml-document :
xmlns="http://Sourcehost.com/namespace"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:SchemaLocation="http://sourcehost.com/namespace http://desthost:8080/sys/schemas/PUBLIC/ADRESSEN.XSD">
SQL> insert into ADRESSEN values
(XMLType
(bfilename ( 'XMLIMPORT_DIR', 'adressen.xml')
, 0 )
--> error :
ORA-30937: No Schemadefinition for "SchemaLocation" (Namespace "http://www.w3.org/2001/XMLSchema-instance") in übergeordnetem Knoten "/ADRESSEN"

Answer 1

Norbert
The schema location used to register the XML schema with XML DB does not need to be a valid URL for accessing the XML Schema
I can use the same URL , for instance
http://xmlns.example.scom/xsd/myXMLSchema.xsd
on machines dbserver1, and dbserver2. The only reason some people choose to use the hostname / portnumber convention is that this makes it possible to validate the XML Instance documents against the copy of the XML schema stored in the XML DB repository using an external tool like XMLSpy without have to add entries to XMLSpy's OASIS catalog files.
I am concerned about the message you are getting. That's not correct AFAICT but I'd need to see the complete XML Schema and Instance to be sure.