Cypher-获取与起始节点ID，结束节点ID和类型的关系 [英] Cypher - get relationships with start node id, end node id and type

问题描述

我具有关系的开始和结束节点的类型和ID.

I have the type and the id for the start and end node of a relationship.

我想要一个返回所有可能动作的查询.

I would like a query that returns all the possible actions.

我已经尝试过

MATCH (a)-[r]-(b) WHERE id(a)=1 AND id(b)=2 RETURN *;

但是它不起作用.

解决方案

我使用GrapheneDB.通常，GrapheneDB在节点图形上显示系统节点ID，但是当您具有属性id时，它将显示它.当我运行查询时，我使用的是图形ID，实际上不是系统ID，因此id(a)没有给出预期的结果.

I use GrapheneDB. Usually GrapheneDB presents the system node id on the node graphic but when you have an attribute id it presents that instead. When I ran the query I was using the graphic id which wasn't actually the system id so id(a) didn't give the expected result.

推荐答案

工作正常: http://console .neo4j.org/r/z9mb7r

如您所见，如果连接了这两个节点，则返回一个结果.

As you can see, if these two nodes are connected, one result is returned.

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