如何导出MongoDB中的所有集合? [英] How to export all collections in MongoDB?

问题描述

我想通过以下命令导出MongoDB中的所有集合:

I want to export all collections in MongoDB by the command:

mongoexport -d dbname -o Mongo.json

结果是:
未指定收藏！

The result is:
No collection specified!

手册说，如果您不指定集合，则所有集合都将被导出.
但是，为什么这不起作用?

The manual says, if you don't specify a collection, all collections will be exported.
However, why doesn't this work?

http://docs.mongodb.org/manual/reference/mongoexport/#cmdoption-mongoexport--collection

我的MongoDB版本是2.0.6.

My MongoDB version is 2.0.6.

推荐答案

对于懒惰的人，使用mongodump，速度更快:

For lazy people, use mongodump, it's faster:

mongodump -d <database_name> -o <directory_backup>

并还原/导入"它(从directory_backup/dump/):

And to "restore/import" it (from directory_backup/dump/):

mongorestore -d <database_name> <directory_backup>

这样，您无需单独处理所有集合.只需指定数据库即可.

This way, you don't need to deal with all collections individually. Just specify the database.

请注意，我建议不要将mongodump/mongorestore用于大数据存储.这非常慢，一旦获得超过10/20GB的数据，它可能需要数小时才能恢复.

Note that I would recommend against using mongodump/mongorestore for big data storages. It is very slow and once you get past 10/20GB of data it can take hours to restore.

这篇关于如何导出MongoDB中的所有集合?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！