Couple of things:
1. You have no clue on what are you doing. Not good.
XSD is XML Schema Definition - not a database file. Read :
http://www.w3schools.com/schema/schema_intro.asp[
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It can be used to define new schema of database but not as a database, here:
Generate SQL Database Schema from XML - Part 1 (File Format and XSD)[
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2. You were shared articles and links to learn. It looks like you have completely ignored them. Again, not good.
Please spend some time learning and reading form the links and answers shared. Don't just jump into black area you have no clue about.