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Re: XPath 2.0 - how much of XQuery should it include?

• To: Ronald Bourret <rpbourret@r...>
• Subject: Re: XPath 2.0 - how much of XQuery should it include?
• From: Jonathan Robie <jonathan.robie@d...>
• Date: Mon, 13 May 2002 11:55:46 -0700
• Cc: xml-dev@l...
• In-reply-to: <3CDF8D28.26DFD692@r...>
• References: < <5.1.0.14.0.20020510123018.03dba770@n...><5.1.0.14.0.20020510123018.03dba770@n...><5.1.0.14.0.20020510130531.01665d98@n...><p04330109b90229bf5ca5@[192.168.254.4]><1131732119876.20020512105953@j...><3CDF850F.2CED3596@r...><1901816907755.20020513103302@j...>

At 02:53 AM 5/13/2002 -0700, Ronald Bourret wrote:
>Jeni Tennison wrote:
> > It was simply that in the XQuery WD there's no mention of parameters
> > in the query prolog. Perhaps they're waiting in the wings.
>
>Fair enough.
>
> > I guess that you could have parameterisation through separate XML
> > documents accessed by document() (though without being able to supply
> > the location of the document as a parameter, you're pretty limited).
>
>I was thinking of something much more simple -- a simple parameter
>marker (?) that allows you to pass in values a la SQL:
>
>    FOR $book IN document("catalog.xml")//book
>       WHERE $book/author = ?
>    RETURN $book

How is this different from a variable?

define function book-by-author(element author $a)
{
    for $book in document("catalog.xml")//book
    where $book/author = $a
    return $book
}

What is still missing from the spec is a way to define and load modules. 
That's important functionality, IMHO.

Jonathan

• Follow-Ups:
  • Re: XPath 2.0 - how much of XQuery should it include?
    • From: Ronald Bourret <rpbourret@r...>
  • Re: XPath 2.0 - how much of XQuery should it include?
    • From: Jeni Tennison <jeni@j...>

• References:
  • RE: XPath 2.0 - how much of XQuery should it include?
    • From: Jonathan Robie <jonathan.robie@d...>
  • RE: XPath 2.0 - how much of XQuery should it include?
    • From: Jonathan Robie <jonathan.robie@d...>
  • RE: XPath 2.0 - how much of XQuery should it include?
    • From: Elliotte Rusty Harold <elharo@m...>
  • Re: XPath 2.0 - how much of XQuery should it include?
    • From: Jeni Tennison <jeni@j...>
  • Re: XPath 2.0 - how much of XQuery should it include?
    • From: Ronald Bourret <rpbourret@r...>
  • Re: XPath 2.0 - how much of XQuery should it include?
    • From: Jeni Tennison <jeni@j...>
  • Re: XPath 2.0 - how much of XQuery should it include?
    • From: Ronald Bourret <rpbourret@r...>

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