hello,

I'd like to allow a user (not tech savvy) to modify certain values on
an XML file. the idea is to give the user a tool that allows him to
perform certain simple tasks such as adding/removing a record, or
modifying a value.

for example the user could change
<Projection proj="before"/>
to
<Projection proj="after"/>

or
<Color .... />
<Color b="0.2" g="0.8" name="background" r="1.0"/>
to
<Color .... />
<Color b="0.2" g="0.8" name="background" r="1.0"/>
<Color b="0.5" g="0.5" name="background" r="0.5"/>

does such a tool already exist? is it possible to do these changes
using an SQL variant?

thanks