问题
I am using python library RDFLIB to query on semantic dicom owl file. I need to query for a label containing letter mu. I am not able to figure out how to query for labels containing this letter. The code is given below -
q = """SELECT ?ur WHERE{?ur rdfs:label "Exposure in uAs".}"""
qres = g.query(q)
for row in qres:
print(row)
I am not getting any results for the above query.
The semantic dicom owl files contain the following triples -
Image of what I am trying to search contents of sedi file (<10 reputation, can't post images)
SEDI file - Semantic Dicom OWL file
回答1:
This is not the greek letter μ (U+03BC), but the micro sign (U+00B5).
The following code works for me in Python 3.6:
q = """SELECT ?ur WHERE{?ur rdfs:label "Exposure in µAs".}"""
qres = g.query(q)
for row in qres:
print(row)
The following code works for me both in Python 2.7 and Python 3.6:
q = """SELECT ?ur WHERE{?ur rdfs:label "Exposure in \u00b5As".}"""
qres = g.query(q)
for row in qres:
print(row)
来源：https://stackoverflow.com/questions/44062565/querying-letter-mu-in-sparql