Question

我使用SPARQL面临一个奇怪的问题。这段代码在QConsole上运行良好 -

xquery version "1.0-ml";
import module namespace sem = "http://marklogic.com/semantics" at "/MarkLogic/semantics.xqy";

declare function local:forex-series (
    $from-currency-id as xs:string,
    $to-currency-id as xs:string,
    $forex-supplier-id as xs:string,
    $feed-name-id as xs:string
)
{
    let $map := map:map()
    let $series-sparql := 'PREFIX series: <http://iddn.icis.com/series/>
                    PREFIX predicates: <http://iddn.icis.com/predicates/>
                    PREFIX xmls: <http://www.w3.org/2001/XMLSchema#>

                    SELECT ?series
                    WHERE {
                      ?series predicates:to-currency $toCurrencyId ;
                              predicates:from-currency $fromCurrencyId ;
                              predicates:forex-provider $forexSupplierId ;
                              predicates:forex-feed $feedNameId ;
                    }'
    let $_ := map:put($map, "toCurrencyId", sem:iri($to-currency-id))
    let $_ := map:put($map, "fromCurrencyId", sem:iri($from-currency-id))
    let $_ := map:put($map, "forexSupplierId", sem:iri($forex-supplier-id))
    let $_ := map:put($map, "feedNameId", sem:iri($feed-name-id))
        return
            sem:query-results-serialize(sem:sparql($series-sparql, $map))
};

let $to-currency-id := "http://iddn.icis.com/ref-data/currency/10"
let $from-currency-id := "http://iddn.icis.com/ref-data/currency/18"
let $forex-supplier-id := "http://iddn.icis.com/asset/forex/xe"
let $feed-name-id := "http://iddn.icis.com/asset/forex/current"
return local:forex-series($from-currency-id, $to-currency-id, $forex-supplier-id, $feed-name-id)

但是当它添加到XQuery开发代码并部署到模块中时，它无法正常工作。 sem:sparql在这种情况下不会返回任何内容。

是否需要进行任何设置？或者我错过了什么？对此请考虑一下！

Answer 1

请记住，三元组是文档，并遵循与其他文档相同的安全性。

那么，你确定你有权阅读包含三元组的文件吗？

示例：您是在查询控制台中使用admin还是以其他方式运行代码的其他用户？

XQuery中的SPARQL没有返回结果

1 个答案: