mongodb 如何将 mongodump 用于 1 个集合
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How to use mongodump for 1 collection
提问by user2325703
How can I use mongodumpto move a single collection from one database to another?
如何mongodump将单个集合从一个数据库移动到另一个数据库？
How should I use the command and its options?
我应该如何使用命令及其选项？
回答by alecxe
I think it's just:
我认为这只是：
mongodump --db=<old_db_name> --collection=<collection_name> --out=data/
mongorestore --db=<new_db_name> --collection=<collection_name> data/<db_name>/<collection_name>.bson
Btw, the other way to move the collection from one database to another is to use renameCollection:
顺便说一句，将集合从一个数据库移动到另一个数据库的另一种方法是使用renameCollection：
db.runCommand({renameCollection:"<old_db_name>.<collection_name>",to:"<new_db_name>.<collection_name>"})
Here's some related SO threads:
这是一些相关的SO线程：
- How to copy a collection from one database to another in MongoDB
- How to use the dumped data by mongodump?
Hope that helps.
希望有帮助。
回答by Vaseem007
Taking database (document) dump (backup)
取数据库（文档）转储（备份）
mongodump --host <hostname-of-mongoserver> --db <db-name> --username <dbuser-name> --password <password> --gzip --out </backup/location/>
Taking collection dump (backup)
采取收集转储（备份）
mongodump --host <hostname-of-mongoserver> --db <db-name> --collection <collection-name> --username <dbuser-name> --password <password> --gzip --out </backup/location/>
回答by Anish Agarwal
Very basic commands for dump mongodb.
转储 mongodb 的非常基本的命令。
Dump all collection
mongodumpDump specific database only
mongodump --db=DB_NAMEDump database with username & password
mongodump -u=USERNAME -p=PASSWORD --db=DB_NAMEDump from another host
mongodump --host HOST_NAME/HOST_IP --port HOST_PORT --out {YOUR_DIRECTOTY_PATH} --db=DB_NAME
转储所有集合
mongodump仅转储特定数据库
mongodump --db=DB_NAME使用用户名和密码转储数据库
mongodump -u=USERNAME -p=PASSWORD --db=DB_NAME从另一个主机转储
mongodump --host HOST_NAME/HOST_IP --port HOST_PORT --out {YOUR_DIRECTOTY_PATH} --db=DB_NAME
Only able to dump from another host when they allow it.
只有在允许的情况下才能从另一台主机转储。
