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可以不停止服务的情况下使用mongodump命令来备份MongoDB某个数据库实例的数据，那么是否可以指定某个日期等参数来备份某个数据库实例的一部分数据就好
@PlantWang 说：
mongodump
試試 -q 或 --query
可以參考:
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