Tjerk,
Thanks for the response.  
In particular, I expect to be using a DB2 database with XML Extenders
(IBM).  I may need this on different platforms - Linux, ISeries,
Win2000.

A Java/SQL solution may be best.  I am hoping for something like a
Java class that can parse the XPath and create the Where clause of a
SQL query.  Special SQL functions might be used to emulate the
standard XPath functions.

XPath has been around for a while, so I am surprised that I have not
been able to find "off the shelf" tools to do this.

Terry


Tjerk Wolterink <tjerk@w...> wrote in message news:<41adc5e4$0$30715$18b6e80@n...>...
> Terry P wrote:
> > Are there any tools (java classes, tag libraries) which can translate
> > xpath statements into a SQL query?
...> 
> > Terry
> 
> What sory of database are you talking about?
> A ordinary relational database? Or an XML-database.
> Xml-databases are new and not very fast, but there is extensive research in xml-database-system.
> Those system support xpath and xquery as query languages.
> 
> I'f you want to map xpath onto sql, then your're right: you need some
> rules about how xml is mapped onto the relational database.
> With those rules you could map xpath expression to sql expressions.
> 
> I don't know wether they exists. I myself have my own mapping rules,
> rather simplistic rules but it does the job for me.