SPARQL query

Daniele Antonucci

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Apr 30, 2021, 9:40:41 AM4/30/21

to Brick User Forum (Unified Building Metadata Schema)

Hi all,

I have a question regarding how to get data from a .ttl file using sparql query when I have a structure like this.

bldg:PM10sens2 a brick:PM10_Sensor ;

brick:hasLocationOf bldg:Office0.21 ;

brick:hasUnit unit:PPM ;

brick:isPointOf bldg:IEQ_meter2 ;

brick:timeseries [ brick:hasTimeseriesId "123456" ] .

I would like to get the value of the TimeseriesId.

Many thanks

All the best,

Daniele

Ambuj Shatdal

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Apr 30, 2021, 10:00:17 AM4/30/21

to Daniele Antonucci, Brick User Forum (Unified Building Metadata Schema)

A good starting book for SPARQL is DuCharme’s Learning SPARQL. Of course, there are various online resources.

SELECT DISTINCT ?pt ?tsid
WHERE {
?pt a brick:PM10_Sensor .
?pt brick:timeseries [brick:hasTimeseriesId ?tsid ] .
}

Query Results ( 1 rows):
https://example.com/Building#PM10sens2 123456

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Antonucci Daniele

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Apr 30, 2021, 10:02:12 AM4/30/21

to Ambuj Shatdal, Brick User Forum (Unified Building Metadata Schema)

Thank you so much for both pieces of information, very helpful.

Best

Daniele

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