Usage of the xml string get from xsql

Question

I can retrieve a string of xml from database like:
<rowset>
<row num="1">
<xml_string>
<test>value1</test><test>value2</test>
</xml_string>
</row>
</rowset>
whereas xml_string is the fieldname and under <xml_string> is the field value.
Question is I cannot refer to the value of the string as xml in my stylesheet. How can I treat that string as part of my whole xml document generated by xsql?
Any help is great!

Answer 1

Ah.. I've just find another related issue.
For the included xsql page, I find that if I include the stylesheet as type="text/xsl" just like the "document" example, the multibyte characters will become "???".
However, if I change the type="xml", those multibyte characters will appear correctly.
The only different inside the xml is that if I use type="xml", the following line will be added to the xml document:
<?xml version="1.0" ?>
Anyway, should I use
<?xml-stylesheet type="xml" href="my_stylesheet.xsl"?>
instead of
<?xml-stylesheet type="text/xsl" href="my_stylesheet.xsl"?>
And the thing is, I'm waiting for newer version of xsql parser to upgrade and hope my existing xsql code still works in the future.
Thanks for any advice.