是否可以将mongo游标迭代两次? [英] Is it possible to iterate a mongo cursor twice?

问题描述

换句话说，是否有办法将其倒带到开头?

In other words, is there a way to rewind it to the beginning?

编辑

我正在使用mongo shell和pymongo.

I am using mongo shell and pymongo.

推荐答案

Ruby API 具有rewind!方法，可以完全满足您的要求.

The Ruby API has the rewind! method that does exactly what you want.

Python API 也具有cursor.rewind()方法.

PHP API 也具有cursor.rewind()方法.

但是，Java或C ++ API都没有rewind方法.所有内容都可以在官方API页面中找到.

However, neither the Java or C++ APIs have the rewind method. All can be found from the official API page.

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