Fuseki SPARQL查詢：正則表達式找不到現有文字

Question

我試圖返回基於正則表達式查詢的節點。

select ?s ?p where {  
    ?s a Products:Style .
    ?s Products:PartNumber ?p .
    filter ( regex (?p, "^442A")) 
}

我有一個名為Products：442A30的節點。 它具有以下屬性。

Products:442A30  a                    <http://www.w3.org/2002/07/owl#NamedIndividual> , Products:Style ;
        rdfs:label                    "Gesture; Chair, Upholstered ;
        Products:AltDescription       "Gesture;Chair,Uph,Adj seat D" ;
        Products:BasePrice            "1,241.00" ;
        Products:ClassNoun            "Chair" ;
        Products:HasComponent         Products:P442_WORK_1 ;
        Products:HasServicePart       Products:4652510SR ;
        Products:LongDescription      "Gesture; Chair, Upholstered, Shell back, Adjustable seat depth" ;
        Products:PartNumber           "442A30" ;
        Products:ProductLine          Products:442_GESTURE ;
        Products:ShortDescription     "Gesture;Chair,Uph,Shl bk,Adj seat D" ;
        Products:StyleFeature         "Shell back" , "Adjustable seat depth" ;
        Products:StyleMaterial        "Upholstered" ;

除非我沒有記錯，否則我的兩個查詢參數都將得到滿足。 盡管如此，上面的節點不會返回。 相反，我得到了Products:442A30VP和Products:442B30VP 。

謝謝！

Answer 1

將您的過濾filter ( regex (?p, "^442.*"))更改為filter ( regex (?p, "^442.*"))