是否可以将这 2 个 SPARQL INSERT 合并为一个? [英] Is it possible to combine those 2 SPARQL INSERT into one?
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问题描述
我想执行以下查询,在节点 a 和节点 b 之间添加关系 skos:related :
I want to perform the following queries, to add a relation skos:related between node a and node b :
PREFIX skos:<http://www.w3.org/2004/02/skos/core#>
INSERT { GRAPH ?graph { ?a skos:related ?b } }
WHERE{
GRAPH ?graph {
{ ?a skos:inScheme ?scheme } .
{ ?b skos:inScheme ?scheme }
}
};
INSERT { GRAPH ?graph { ?b skos:related ?a } }
WHERE{
GRAPH ?graph {
{ ?a skos:inScheme ?scheme } .
{ ?b skos:inScheme ?scheme }
}
};
我更愿意向 RDF 存储发送单个查询,但找不到这样做的方法.显然,这里的查询采用通用形式,并且 ?a、?b、?scheme 和 ?graph 变量在执行时与特定值绑定.
I would prefer to send a single query to the RDF store, but can't find a way to do so. Obviously, the queries are here in generic form, and ?a, ?b, ?scheme and ?graph variables are bound with specific values at execution.
有办法吗?
推荐答案
您不能在单个查询模式中同时断言 skos:related 关系的两个方向吗?即:
Can't you just assert both directions of the skos:related relation in a single query pattern? I.e.:
PREFIX skos:<http://www.w3.org/2004/02/skos/core#>
INSERT { GRAPH ?graph { ?a skos:related ?b . ?b skos:related ?a } }
WHERE{
GRAPH ?graph {
{ ?a skos:inScheme ?scheme } .
{ ?b skos:inScheme ?scheme }
}
};
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