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Title: RE: [xml-dev] Help creating DTD
Another possibility In terms of the structure would be to group the items together separately from the Orders, and reference each item to its corresponding order using an IDREF-type attribute. So instead of the XML document structure being as follows:
<?xml version="1.0" encoding="UTF-8" ?>
- <ORDER>
<UID>DSM/RSM USER NAME</UID>
<DEALER>21</DEALER>
- <ORDERS>
<ITEM id="0116602800">7</ITEM>
<ITEM id="1106500706">8</ITEM>
<ITEM id="1106502706">9</ITEM>
<ITEM id="1106700706">5</ITEM>
<ITEM id="1106702706">7</ITEM>
<ITEM id="0100102883">3</ITEM>
<ITEM id="0100100805">333</ITEM>
<ITEM id="0101000725">5</ITEM>
</ORDERS>
It would be as follows:
<?xml version="1.0" encoding="UTF-8" ?>
- <ORDERS>
<ORDER orderID="123">
<UID>DSM/RSM USER NAME</UID>
<DEALER>21</DEALER>
...additional order information here...
</ORDER>
<ORDER>
...order information here...
</ORDER>
</ORDERS>
- <ITEMS>
<ITEM itemID="0116602800" orderID="123">
...item information here...
</ITEM>
<ITEM itemID="1106500706" orderID="456">
...item information here...
</ITEM>
</ITEMS>
The "orderID" attributes above would be IDREF-type attributes. In W3C Schema, the KEY/KEYREF constructs would be used instead of ID/IDREF-type attributes.
Regards,
Joe Chiusano
LMI
> **************************************************************************
> Joseph M. Chiusano
> Logistics Management Institute
> 2000 Corporate Ridge
> McLean, VA 22102
> Email: jchiusano@lmi.org
> Tel: 571.633.7722
> **************************************************************************
>
-----Original Message-----
From: Karl Stubsjoen [mailto:karl@excelbus.com]
Sent: Tuesday, July 09, 2002 4:44 PM
To: Xml-Dev
Subject: RE: [xml-dev] Help creating DTD
Don't know if this makes a difference, but...
It is the value of the <ITEM /> node which must be numeric > 0
The property "id" of <ITEM /> can be anything (numerical or character).
Also - should I be creating a DTD or a Schema?
Karl
-----Original Message-----
From: Karl Stubsjoen [mailto:karl@excelbus.com]
Sent: Tuesday, July 09, 2002 1:19 PM
To: Xml-Dev
Subject: [xml-dev] Help creating DTD
Hello,
I need help creating a DTD. Actually, is it a DTD that I mean to create? I
have an existing XML document, from this I need to create a *template*
(dtd?) which I can then use to validate future XML documents.
My XML document looks like this:
<?xml version="1.0" encoding="UTF-8" ?>
- <ORDER>
<UID>DSM/RSM USER NAME</UID>
<DEALER>21</DEALER>
- <ORDERS>
<ITEM id="0116602800">7</ITEM>
<ITEM id="1106500706">8</ITEM>
<ITEM id="1106502706">9</ITEM>
<ITEM id="1106700706">5</ITEM>
<ITEM id="1106702706">7</ITEM>
<ITEM id="0100102883">3</ITEM>
<ITEM id="0100100805">333</ITEM>
<ITEM id="0101000725">5</ITEM>
</ORDERS>
</ORDER>
I'll try and describe the above:
<ORDER> can contain any number of child elements
<UID> must be included
<DEALER> must be included
<ORDERS> must be included
<ORDERS> can contain multiple ITEM(s) but restricted to just ITEM nodes
<ITEM> must have unique id property and the value of item must be numeric >
0
Thanks for the help!
*meanwhile I will give this a go myself!*
Karl
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