neo4j删除所有数据

neo4j删除所有数据

一次性删除

MATCH (n)
DETACH DELETE n ;

分批次删除

• 先删除关系

 MATCH ()-[r]->()
    WITH r LIMIT 100000
    DELETE r
    RETURN count(r)

• 在删除节点

   MATCH (n)
    WITH n LIMIT 100000
    DELETE n
    RETURN count(n)

验证

• 查询节点总数

MATCH (n)
RETURN count(n) AS nodeCount;

• 查询关系总数

MATCH ()-[r]->()
RETURN count(r) AS relationshipCount;