Mongo output query to file

In this case we specify json to export it to a JSON file. We have the option of exporting all fields or just some. This parameter can also be passed using -q. Export Less Fields You can specify less fields with the --fields parameter if you wish.

Where to Run the Commands? Specifies the database on which to run mongoexport. Specifies the collection we want to export or run the query against. Specifies the exported file type.

Specifies the fields that we want to export. For a sharded cluster , the specified output database must already exist.

The following aggregation operation pivots the data in the books collection to have titles grouped by authors and then writes the results to the authors collection in the reporting database:. Version 5. On this page Definition Syntax Behaviors Examples. The output database name. The output collection name. You cannot specify a sharded collection as the output collection.

The input collection for a pipeline can be sharded. Available starting in MongoDB 2. Available starting in MongoDB 4. Can output to a collection in the same or, starting in MongoDB 4. I am yet to try it with mongosh I need a solution for mongosh.

Only "data" apparent in the output. Correct, it might have changed in the new version. Documentation says, you can do --eval, while help says otherwise. From help page mongosh does not support option --eval as of my version 0. However in current doc mongosh Options it seems to be available. TimBiegeleisen this is a bug, which is reported to MongoDB now.

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