问题
Assuming that there is a simple graph as follows,
(City {name:gotham})<-[:LOCATED]-(Tower {name:abc})<-[:LOCATED]-(Bank:{name:CityBank})
(City {name:gotham})<-[:LOCATED]-(Cinema {name:MainHall})
(City {name:gotham})<-[:LOCATED]-(Bank {name:ComBank})
How can i get all banks located in City named Gotham in Neo4j Database (including CityBank and comBank)? I tried following pattern, it returned all the nodes LOCATED in City named gotham (Including Cinema as well)
MATCH (City{name:'Gotham'})<--(Bank) RETURN Bank
回答1:
Assuming you just mistyped the query, what isn't working?
MATCH (:City{name:'Gotham'})<--(bank:Bank) RETURN bank
should work fine.
Completely wrong as typed, should have read (the lonely star indicating, all relationships of any type, any length path):
MATCH (:City{name:'Gotham'})<-[*]-(bank:Bank) RETURN bank
Better would be:
MATCH (:City{name:'Gotham'})<-[:LOCATED*1..2]-(bank:Bank) RETURN bank
So as only to traverse LOCATED relationships. You can adjust the *1..2 (match paths of length 1 to 2) to meet path length requirements (if for example you added a Street or Block node, you might want to match paths up to length 3 *1..3)
来源：https://stackoverflow.com/questions/26798442/how-to-retrieve-nodes-for-multiple-depth-relationships-neo4j-database-cypher