Element General Description
All of the Database is held by the single element <dml:Database>
The syntex is as the following:
<dml:Database dml:Name="[name]" dml:Version="1.0" xmlns:dml="http://www.codeplax.com/dml">
Here you can place Meta tags.
After it you can place Relations tags.
And in the end the last yet importent Table tags (min 1 Table).
</dml:Database>

Notes
By E.C.