英文:
Query graph db for two values belonging to same type of vertex
问题
Sure, here is the translated Gremlin query:
g.V().has('Parts', '~id', 'ABCD')
.has('Parts', '~id', 'PQRS').values()
Please note that I've removed the HTML entities for single quotes ('') in your query to make it a valid Gremlin query.
英文:
I want to query in Amazon Neptune graph db two values belonging to same type of vertex. How can I achieve this in Gremlin ?
e.g.
If we write a query in sql it would look like this -
select * from table where id in ('ID1', 'Id2')
%%gremlin explain
g.V().has('Parts', '~id', 'ABCD')
.has('Parts', '~id', 'PQRS').values()
答案1
得分: 0
基于 SQL 示例，等价的 Gremlin 代码如下：
g.V().has('Parts', '~id',within( 'ABCD','PQRS')).values()
然而，如果 ~Id 是实际的顶点 ID，则可以直接进行如下操作：
g.V().has('Parts', id, within( 'ABCD','PQRS')).values()
但是，鉴于 ID 是唯一的，如果您知道它应该是该类型，就不需要检查标签：
g.V().hasId('ABCD','PQRS').values()
甚至只需
g.V('ABCD','PQRS').values()
英文:
Based on the SQL example, the equivalent Gremlin would be:
g.V().has('Parts', '~id',within( 'ABCD','PQRS')).values()
However, if ~Id is the actual vertex ID, then you can just do:
g.V().has('Parts', id, within( 'ABCD','PQRS')).values()
but given an ID is unique, you don't need to check the label if you know it should be of that type:
g.V().hasId('ABCD','PQRS').values()
or even just
g.V('ABCD','PQRS').values()
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