一次删除多个文档 mongodb 图集

Question

I am only to delete one record at a time in Mongodb cloud db (Atlas). I have 60 records to delete and it is painful. I do not see an obvious way to delete multiple records at once. Is there a simple way to do this?

Answer 1

You actually can't bulk delete in MongoDB Atlas. See MongoDB Atlas info on the filter section AKA Data Explorer . However you can run standard queries, like find, remove once you connect to the database using your Atlas credentials.

At the clusters view, click connect on the cluster with the collection you would like to query/modify. Then follow the UI to get your connection string using Mongo Shell. If you need a GUI way to delete, you may consider Mongo Compass. Atlas also provides instructions how to connect via Compass on the same page.

Answer 2

You can use $multi=true in remove method of the collection in mongo shell

db.collectionName.remove({where condition}, {$multi:true})

Will delete all the records matching the conditions.

If you are using the JPA or mongo-data repository in any language then you might have below methods:

 deleteAllByColumnName(ColumnNameValue)

or

 deleteAll()

in the interface class, you just need to use the dao.deleteAll() method.

For more documents on Repository Delete Queries please check here

Answer 3

I normally use mLab which is owned by MongoDB. There is an option in there for deleteing all documents.

mLab.com

Answer 4

您可以使用类似于 Compass 但具有删除功能的 Robomongo，因此您可以使用这样的查询：deleteMany({name: "dang"}) https://robomongo.org/

Answer 5

If you don't want to keep any of the documents inside a collection you can just drop the entire collection through mongodb atlas app. That will delete all the documents inside your collection . Don't worry the collection will get created on its own when you create a document. I find this way more convenient than installing the mongodb shell and then running the remove query.