Danny:
-------
Thanks Danny. Yes. I want to query the entire database to get all the
documents and search for speakers along with their lines in each document. I
am trying this scenario to learn the language and its nuts and bolts.
Is "fn:" required? Is this the default namespace?
Florent:
--------
I tried your approach of declaring the variable type. It did not help.
Can there be more than 1 return from 1 FLWOR expression?
I was thinking of this ...
for $d in doc()
(: Print the document name here ... return (<h1>{document-uri($d)}</h1>) :)
let $speech := $d//SPEECH
let $speaker := $speech/SPEAKER
let $lines := $speech/LINE
(: Look through each speaker in the document and display all the line elements
of that speaker :)
return (
<h3>{$speaker/text()}</h3>,
<p>{for $line in $lines return $line/text()}</p>
)
Is this possible?
Any other suggestions?
Thanks so much
Anil Shekhar
> From: [email protected]
> To: [email protected]; [email protected]
> Date: Wed, 23 Sep 2009 11:55:35 -0700
> Subject: RE: [MarkLogic Dev General] FLWOR clarification ...
> CC:
>
> Hi Anil,
>
> Another quick observation here: Your queries all return the entire database
> and process the whole database in a single query. You might want to do this
> one play at a time (or even one act or scene at a time). As it is, you end
> up sending a huge result back to the browser. So perhaps instead of:
>
> for $speech in doc()//SPEECH
>
> you can do something like:
>
> for $speech in fn:doc("/shakespeare/plays/as_you.xml")//SPEECH
> return ....
>
> -Danny
>
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Florent Georges
> Sent: Wednesday, September 23, 2009 11:40 AM
> To: General Mark Logic Developer Discussion
> Subject: Re: [MarkLogic Dev General] FLWOR clarification ...
>
> Anil Shekhar wrote:
>
> Hi,
>
> > for $speech in doc()//SPEECH
> > let $speaker := $speech/SPEAKER
>
> Here, you loop over each speech. For each one of them, you bind
> the variable $speech to it, and then evaluate the loop body.
> Within which you bind the variable $speaker, etc.
>
> > for $d in doc()
> > let $speech := $d//SPEECH
> > let $speaker := $speech/SPEAKER
>
> Here, you loop over document nodes. For each of them, you bind
> all its speeches at once to the variable $speech. So $speaker in
> turn is bound to the speakers of every speeches in this document.
> And by <h3>{ $speaker/text() }</h3> you create an element the
> content of which is the concatenation of all the text node children
> of all the speaker elements.
>
> This is a good example where declaring the type (an arity) of
> the variables would have helped you:
>
> for $d in doc()
> let $speech as element(SPEECH) := $d//SPEECH
> let $speaker as element(SPEAKER) := $speech/SPEAKER
>
> Hope that helps (by the way, upper case element names look kind
> of weird,) regards,
>
> --
> Florent Georges
> http://www.fgeorges.org/
>
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