多个 SPARQL“INSERT WHERE"在单个请求中查询 [英] Multiple SPARQL "INSERT WHERE" queries in a single request

问题描述

我的问题类似于在此线程上提出的问题 是否可以将这 2 个 SPARQL INSERT 合二为一?

My question is similar to what was asked on this thread Is it possible to combine those 2 SPARQL INSERT into one?

我想在一个查询中有多个 INSERT WHERE 语句，但针对不同的主题.我想测试一个特定的值(testValueN")，如果存在，我想为该主题插入一个新的三元组.

I want to have multiple INSERT WHERE statements in a query, but for different subjects. I will like to test a particular value ("testValueN") and if present would like to insert a new triple for that subject.

一个例子是，

PREFIX Sensor: <http://example.com/Equipment.owl#> 
{
    INSERT { 
        ?subject1 Sensor:test2 'newValue1' . 
           }
    WHERE {
        ?subject1 Sensor:test1  'testValue1' . 
          }
};
{
    INSERT { 
        ?subject2 Sensor:test2 'newValue2' . 
           }
    WHERE {
        ?subject2 Sensor:test1  'testValue2' . 
          }
};

我知道上面的查询是错误的.我想知道在 SPARQL 中是否有类似的可能.

I know the above query is wrong. I would like to know if something similar is possible in SPARQL.

推荐答案

是的，这是可能的.事实上，你的例子几乎完全没问题，只是失去了每个插入周围的括号:

Yes, this is possible. In fact, your example is almost completely fine, just lose the brackets around each insert:

PREFIX Sensor: <http://example.com/Equipment.owl#> 
INSERT { 
    ?subject1 Sensor:test2 'newValue1' . 
}
WHERE {
    ?subject1 Sensor:test1  'testValue1' . 
};
INSERT { 
   ?subject2 Sensor:test2 'newValue2' . 
}
WHERE {
   ?subject2 Sensor:test1  'testValue2' . 
}

是有效的 SPARQL 更新序列.

is a valid SPARQL update sequence.

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