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Topic  
Postnext
Sebastian KruseSubject: Generating Schema question
Author: Sebastian Kruse
Date: 02 Sep 2004 06:07 AM
Hello,
when creating an xml-Schema from an xml file, Stylus Studio creates 5 Schema-files. (Besides they are not well-formed, but that is the smallest problem I got...)
My question now is: Is it possible to create just one Schema-file from my xml-file or will Stylus Studio always create more than one Schema-file?
Any help/advice would be very useful to me. :)
Thanks in advance,
Sebastian

P.S. I've been looking in the forum for topics which could help me, but I didn'd find anything. So please don't be mad at me, telling me things like "Search the forum stupid..." ;)
Postnext
Ivan PedruzziSubject: Generating Schema question
Author: Ivan Pedruzzi
Date: 02 Sep 2004 06:37 PM
Hi Sebastian,

Could you send me (mailto:ipedruzz@progress.com) the XML document you are using?

Thanks
Ivan
Postnext
Sebastian KruseSubject: Generating Schema question
Author: Sebastian Kruse
Date: 03 Sep 2004 08:12 AM
Hello Ivan,
I'm afraid that's not possible, because it contains company-data of which I'm not allowed to send to anyone outside of the company. :(

But here are some informations about the XML-File:
It has been created with the document wizard (ADO to XML, so it has been created from database tables of a MS SQL Database).
It consists of 1055 lines.

I don't know if this could be useful or not...if you need further information, please let me know. (Also, please let me know if the information given about the XML-File are relevant for you or not...) ;)

Well, thanks in advance :)
Sebastian
Postnext
Ivan PedruzziSubject: Generating Schema question
Author: Ivan Pedruzzi
Date: 03 Sep 2004 10:37 PM
Hi Sebastian,

I did the following experiment:

- Use ADO to XML to import the table "Region" from the sample SQLServer database Northwind.
the result is the following file

<?xml version="1.0"?>
<xml
xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882"
xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882"
xmlns:rs="urn:schemas-microsoft-com:rowset"
xmlns:z="#RowsetSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="ADOtoXML.xsd">

<s:Schema id="RowsetSchema">
<s:ElementType name="row" content="eltOnly">
<s:AttributeType name="RegionID" rs:number="1" rs:writeunknown="true">
<s:datatype dt:type="int" dt:maxLength="4" rs:precision="10" rs:fixedlength="true" rs:maybenull="false"/>
</s:AttributeType>
<s:AttributeType name="RegionDescription" rs:number="2" rs:writeunknown="true">
<s:datatype dt:type="string" dt:maxLength="50" rs:fixedlength="true" rs:maybenull="false"/>
</s:AttributeType>
<s:extends type="rs:rowbase"/>
</s:ElementType>
</s:Schema>
<rs:data>
<z:row RegionID="1" RegionDescription="Eastern"/>
<z:row RegionID="2" RegionDescription="Western"/>
<z:row RegionID="3" RegionDescription="Northern"/>
<z:row RegionID="4" RegionDescription="Southern"/>
</rs:data>
</xml>

As you can see the document uses multiple namespace; because XML schema can have only one target namespace the algorithm has to create multiples XML Schemas.

The schemas seem to be correct and I was able to validate the xml document using MSXML, XalanJ, Xerces and XSV.

If you would like to have more control you could try to use SQL/XML (DB to XML data source).
Here what I did:

Using the following query

SELECT
XMLELEMENT(name "row",
XMLELEMENT(name "RegionID",t.RegionID),
XMLELEMENT(name "RegionDescription",t.RegionDescription)
)
FROM Northwind.dbo.Region t

I generated a simpler document

<?xml version="1.0" encoding="UTF-8"?>
<root>
<row>
<RegionID>1</RegionID>
<RegionDescription>Eastern</RegionDescription>
</row>
<row>
<RegionID>2</RegionID>
<RegionDescription>Western</RegionDescription>
</row>
<row>
<RegionID>3</RegionID>
<RegionDescription>Northern</RegionDescription>
</row>
<row>
<RegionID>4</RegionID>
<RegionDescription>Southern</RegionDescription>
</row>
</root>

then I created the schema


<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
<xs:element name="root">
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="unbounded" ref="row"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="row">
<xs:complexType>
<xs:sequence>
<xs:element ref="RegionID"/>
<xs:element ref="RegionDescription"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="RegionID" type="xs:integer"/>
<xs:element name="RegionDescription" type="xs:string"/>
</xs:schema>


Hope this helps
Ivan
Posttop
Sebastian KruseSubject: Generating Schema question
Author: Sebastian Kruse
Date: 06 Sep 2004 09:57 AM
Hi Ivan,
in fact, this helps me very much.
Thank you very much for your efforts! :)

Sebastian
   
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