he_ranly的博客

查看pymongo中collection.py源码描述：def create_index(self, keys, session=None, **kwargs): """Creates an index on this collection. Takes either a single key or a list of (key, direction) pairs. The key(s) must be an instance of :class:`basestring`

1.导出json格式# encoding:utf-8import pymongoimport jsonFILE = "E:\\test.json"MONGO_URL = 'mongodb://127.0.0.1:27017' MONGO_DB = 'Test'MONGO_COLLECTION = 'test' client = pymongo.MongoClient(MONGO_URL).MONGO_DB.MONGO_COLLECTIONdatas = client.find({}

1.可以借用工具：Studio 3T for Mongo选择一个数据库中的Collections集合，然后按住 Ctrl+C 复制快捷键会弹出如下帮助框。然后选择目标数据库(可以复制到不同主机的目标数据库下)，点击 Ctrl+V 粘贴快捷键，重命名一下复制的名称即可2.复制数据库： 语法：db.copyDatabase(fromdb,todb,fromhost,username,password,mechanism)从远程主机复制参数fromdbt: 源db； to..