Hi Joseph,
BTW SPARQL has a built-in feature to convert between XSD datatypes, e.g.
LET (?string := "2008-01-02") .
LET (?date := xsd:date(?string))
binds ?date with "2008-01-02"^^xsd:date.
I don't know what you mean with converting a date to a class, but you
can convert a URI string to a class using the function smf:resource(?
uri). You could then use smf:buildURI() to construct a valid URI from
a date.
I hope that helps, if not please clarify.
Holger
On Jan 22, 2009, at 6:45 AM, Joseph Shea wrote:
>
> Hello all. I'm relatively new to TopBraid. I'm trying to convert
> strings into classes, or even dates for that matter....I'm not really
> sure how to do that, but I tried converting a string into a date, and
> the following SPARQL query seemed to have done the job, though it was
> never changed. Any advice on this, or how to convert strings into
> classes? (Websites and tutorials would also be appreciated)
>
> SELECT *
> WHERE {
> ?person :HasBirthdate ?Birthdate .
> LET (?newBirthdate := smf:cast(?Birthdate, xsd:date)) .
> }
>
> >
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