有没有什么具体的方法可以在 eclipse 中为 neo4j 编写限制子句？

Question

我在 neo4j eclipse 实现中遇到以下问题：

1。我在使用限制函数时出错

Code:
      String rows = "";        
    try ( Transaction ignored = graphDb.beginTx();
            Result result = graphDb.execute( "match(pr:Provider)-[t:TREATS]->(p:Problem) return pr.prdes as Name, t.pprcount as Visits, limit 5" ) )
      {
          while ( result.hasNext() )
          {
              Map<String,Object> row = result.next();
              for ( Entry<String,Object> column : row.entrySet() )
              {
                   rows += column.getKey() + ": " + column.getValue() + "; ";
              }
              rows += "\n";
          }
      }
    System.out.println(""+rows);

}

Output:
Exception in thread "main" org.neo4j.graphdb.QueryExecutionException: Invalid input '5': expected whitespace, comment, node labels, MapLiteral, a parameter, a relationship pattern, '(', '.', '[', "=~", IN, IS, '^', '*', '/', '%', '+', '-', '<', '>', "<=", ">=", '=', "<>", "!=", AND, XOR, OR, AS, ',', ORDER, SKIP, LIMIT, LOAD CSV, START, MATCH, UNWIND, MERGE, CREATE, SET, DELETE, REMOVE, FOREACH, WITH, RETURN, UNION, ';' or end of input (line 1, column 97 (offset: 96)) "match(pr:Provider)-[t:TREATS]->(p:Problem) return pr.prdes as Name, t.pprcount as Visits, limit 5"

在没有 limit 子句的情况下执行上述查询也需要 50 分钟。那么如何提高执行速度呢？

Answer 1

limits前不能有逗号，试试

match(pr:Provider)-[t:TREATS]->(p:Problem) 
return pr.prdes as Name, t.pprcount as Visits limit 5

相反。

由于这是一个没有定义起点的全局查询，因此其执行时间当然取决于您的数据大小。

有没有什么具体的方法可以在 eclipse 中为 neo4j 编写限制子句？

Is there any specific way to write limit clause in eclipse for neo4j?

neo4j

graph-databases

neo4j-java-api