How to write a perfect Xml Schema that make my xml file retrieved as tables in dataset?

How to write a perfect Xml Schema that make my xml file retrieved as tables in dataset?
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Hi,
I found using xml instead of databases very amazing to me, which has no license to buy. But i found some problems in writing an xml schema that preserve my database relations and return xml files in tables, that will be in dataset, as if i retrieved from the database.
SO i asked this question and i want someone to help.....................

Thnx

[518 byte] By [22DoorsDown] at [2008-2-15]
# 1
The Dataset class already supports reading and writing to XML. The entire object is serialized, including relations.

As long as you're using it to just store data, that's OK. But running queries against a Dataset is not very powerful, and you might need a database after all. The SQL Server 2005 Express Edition (or MSDE 2000) is available free of charge.

DanielRieck at 2007-9-9 > top of Msdn Tech,.NET Development,XML and the .NET Framework...

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