When you use mongoimport to import files into MongoDB, you have the option of merging existing documents with the ones that you’re importing.
In this case, if an imported document has the same _id value as an existing one in the collection that you’re importing into, the existing document will be merged with the one being imported.
You can also specify another field (other than the _id field) to be the matching field if required.
When you use mongoimport to import files into MongoDB, you have the option of replacing existing documents that match the ones you’re importing.
By this I mean, if an imported document has the same _id value as an existing one in the collection you’re importing into, the existing document will be replaced with the one being imported.
You can also specify another field (other than the _id field) to be the matching field if required.
The way to replace existing documents when using mongoimport is to use upsert mode.
When using MongoDB, you can use mongoimport to import documents into a collection. mongoimport is a command line utility that imports content from an Extended JSON, CSV, or TSV file. The import file could have been created by mongoexport or some other export utility.
This article presents examples of importing a CSV file into MongoDB.
Continue readingWhen using MongoDB, you can use mongoimport to import documents into a collection. mongoimport is a command line utility that imports content from an Extended JSON, CSV, or TSV file. The import file could have been created by mongoexport or some other export utility.
This article presents examples of importing a JSON file into MongoDB.
Continue readingThe MongoDB Database Tools include a utility called mongoexport that enables you to export MongoDB data to a CSV or JSON file.
One of the things you can do with this utitlity is export query results. This article shows you how to use mongoexport to export MongoDB query results to a CSV file.
The MongoDB Database Tools include a utility called mongoexport that enables you to export MongoDB data to a CSV or JSON file.
One of the things you can do with this utitlity is export query results. This article shows you how to use mongoexport to export MongoDB query results to a JSON file.
The MongoDB Database Tools include a utility called mongoexport that enables you to export MongoDB data to a CSV or JSON file.
This article shows you how to use mongoexport to export a MongoDB collection to a JSON file.
The MongoDB Database Tools include a utility called mongoexport that enables you to export MongoDB data to a CSV or JSON file.
This article shows you how to use mongoexport to export a MongoDB collection to a CSV file.
If you have a view in a MongoDB database that you’d prefer to be a collection, you’re in the right place.
Below is an example of converting a view to a collection in MongoDB.
Continue readingIn earlier versions of MongoDB, you could use the copyDB command or its helper method, db.copyDatabase() to copy a database.
MongoDB has since deprecated these. Also, starting in version 4.2, MongoDB has removed the copydb command, and therefore also the db.copyDatabase() method, which means that you can’t use them even if you wanted to if you’re using MongoDB 4.2 or later.
Fortunately, there’s another way to copy a MongoDB database.
Continue reading