http://example/ns#x1
Open+Watcom 源代码
汇集 Open+Watcom 相关的电路原理图、PCB工程文件、单片机/FPGA源代码、数据手册与应用设计方案。
http://example/x1 v1 v2
http://example/ns#x1 a
http://example/ns#z4 02
# Test matching in a graph pattern # Unknown type PREFIX : PREFIX t: SELECT * { ?x :p "a"^^t:type1 }
# SPARQL is defined over simple entailment so # only syntactic matches show. # (Some systems may match because they do # valu…
PREFIX : PREFIX xsd: SELECT ?x ?v1 ?y ?v2 { ?x :p ?v1 . ?y :p ?v2 . OPTIONAL { ?y :p ?v3 . FILTER…
# SPARQL FILTER test by value for known types. # Nothing is known to be not the same value as "a"^^t:type1 # "b"^^t:type1 migh…
PREFIX : PREFIX xsd: SELECT * { ?x :p ?v1 . ?y :q ?v2 . FILTER ( ?v1 != ?v2 ) }
http://example/x1 xyz http://example/y1