Rich,
we do not support any other functions for XSD duration literals (such as
P0Y0M0DT22H0M0.000S) apart from those in the SPARQL 1.1 standard.
Holger
On 2/12/2014 12:48, Scott Henninger wrote:
Rich; Not sure if the difference in expectation is with the version
TopBraid being used, but using 4.3, smf:duration() takes xsd:dateTime
and will return down to the milliseconds. As an example, to get the
number of seconds between a dateTime property and the current
xsd:dateTime, you can use the following:
SELECT ?dur
WHERE
{ ?s ex:dt ?time
BIND(smf:duration("s", ?time, now()) AS ?dur)
}
-- Scott
On 2/11/2014, 6:51 PM, Rich Keller wrote:
Scott: I'm aware of the SPARQL and TopBraid functions you mention.
But to my knowledge, these functions do not operate on duration
literals like P0Y0M0DT22H0M0.000S, which was returned by my query
subtracting two xsd:time or xsd:dateTime literals (see original
post). As I mentioned, smf:duration seems to take two xsd:date
variables as input, which means it is not suitable for determining
the duration between arbitrary times.
Rich
On Tuesday, February 11, 2014 9:39:40 AM UTC-8, Scott Henninger wrote:
Rich, there are a number of SPARQL and TopBraid functions that
work on xsd:time and xsd:dateTime for SPARQL, see
http://www.w3.org/TR/sparql11-query/#func-date-time
<http://www.w3.org/TR/sparql11-query/#func-date-time>, including
year(), month(), day(), hours(), timezone(), etc.
TopBraid also has functions for duration, formatting date
strings, etc. I.e. you can convert a dateTime string to a date
string using dateFormat(). See TopBraid Composer Help TopBraid
Composer > Reference > Functions Overview
-- Scott
On 2/11/2014, 10:40 AM, Rich Keller wrote:
Hi. I have been trying to do some temporal arithmetic in SPARQL
and have stumbled upon what I believe are time periods or time
intervals. For example
SELECT ?a ?aa
WHERE {
BIND (("08:15:00"^^xsd:time - "10:15:00"^^xsd:time) AS ?a)
BIND (("2012-09-08T08:15:00"^^xsd:dateTime -
"2012-09-07T10:15:00"^^xsd:dateTime) AS ?aa)
}
Results:
?a -> -P0Y0M0DT2H0M0.000S (negative 2 hours)
?aa -> P0Y0M0DT22H0M0.000S (positive 22 hours)
My question: Is there any way to operate on these time periods?
In particular, suppose I want to convert the length of these
these periods into seconds or minutes. smf:duration does
something similar, but it works on xsd:date values, and not time
periods. If smf:duration took xsd:dateTime or xsd:time
arguments, that would be helpful.
Do you have any pointers to functions that extract information
from these time periods? I suppose I can figure a way to do the
arithmetic myself using days(), hours(), minutes() functions,
but I would prefer to avoid that.
Thanks, Rich
Using TBC-SE 4.3.0
--
-- You received this message because you are subscribed to the
Google
Group "TopBraid Suite Users", the topics of which include
Enterprise Vocabulary Network (EVN), TopBraid Composer, TopBraid
Live, TopBraid Insight, SPARQLMotion, SPARQL Web Pages and SPIN.
To post to this group, send email to
[email protected] <javascript:>
To unsubscribe from this group, send email to
[email protected] <javascript:>
For more options, visit this group at
http://groups.google.com/group/topbraid-users?hl=en
<http://groups.google.com/group/topbraid-users?hl=en>
---
You received this message because you are subscribed to the
Google Groups "TopBraid Suite Users" group.
To unsubscribe from this group and stop receiving emails from
it, send an email to [email protected]
<javascript:>.
For more options, visit https://groups.google.com/groups/opt_out
<https://groups.google.com/groups/opt_out>.
--
-- You received this message because you are subscribed to the Google
Group "TopBraid Suite Users", the topics of which include Enterprise
Vocabulary Network (EVN), TopBraid Composer, TopBraid Live, TopBraid
Insight, SPARQLMotion, SPARQL Web Pages and SPIN.
To post to this group, send email to
[email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/topbraid-users?hl=en
---
You received this message because you are subscribed to the Google
Groups "TopBraid Suite Users" group.
To unsubscribe from this group and stop receiving emails from it,
send an email to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
--
-- You received this message because you are subscribed to the Google
Group "TopBraid Suite Users", the topics of which include Enterprise
Vocabulary Network (EVN), TopBraid Composer, TopBraid Live, TopBraid
Insight, SPARQLMotion, SPARQL Web Pages and SPIN.
To post to this group, send email to
[email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/topbraid-users?hl=en
---
You received this message because you are subscribed to the Google
Groups "TopBraid Suite Users" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
--
-- You received this message because you are subscribed to the Google
Group "TopBraid Suite Users", the topics of which include Enterprise Vocabulary
Network (EVN), TopBraid Composer, TopBraid Live, TopBraid Insight, SPARQLMotion, SPARQL
Web Pages and SPIN.
To post to this group, send email to
[email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/topbraid-users?hl=en
---
You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
