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MongoDB Output Tool Icon MongoDB Output Tool


The MongoDB Output tool is deprecated. You can still use the Output Data tool with the ODBC driver linked on the MongoDB datasource page to connect to MongoDB.

The MongoDB Output tool is used for writing data to MongoDB databases. MongoDB is a scalable, high-performance, open source NoSQL database. Learn more about MongoDb.

MongoDB databases store data in a binary JSON format called BSON. Learn more about BSON.


Long numbers are rounded when inserted to DB. To avoid this, you can turn the number into a string by adding quotes.

Tool Configuration

  1. Server: The name of the MongoDB server you wish to connect to. Enter localhost to connect to a MongoDb instance you have on the machine running Alteryx.

  2. User Name (optional) and Password (optional): If your MongoDb instance is running with the –auth option, enter the username and password you wish to connect to.

  3. Database: The name of the MongoDB database you wish to connect to.

  4. Collection: The name of the MongoDB collection you wish to push data to.

  5. Output Options:

    • Append Existing: Append the new records onto the end of your collection

    • Delete Data & Append: Deletes the collection and then adds the new records

    • Update Using Mongo _id: Will attempt to match an existing record using the MongoDB _id element to the field specified in “_id field”. If a match is found then the existing record will be updated with the new one. If no match is found then the new record will be appended onto the collection.

  6. Mongo _id Field: When using Update Using Mongo _id, select the field that contains the _id value. To update based on the MongoDb generated ID, this should be a JSON object.

    • _id" : { "$oid" : "4fad55603346998a9f7d6841" }}

  7. Unknown Fields:

    • Position Using Field Name: The unknown fields will be positioned using the dot notation of their names. Starting with the location of the Dynamic or Unknown Fields node as their root position.

    • Position as Left: The unknown fields will added wherever the Dynamic or Unknown Fields node is positioned.

  8. BSON Structure: The tree view at the bottom of the tool configuration provides a visual representation of what the BSON object will look like which is going to be inserted into your collection.

    • The default options uses the dot notation to build the structure of the BSON object. Dot notation follows the pattern:

      • MemberID; Name.First; Name.Last

    • Passing the fields using the defaults creates the JSON object:

      • { MemberID: 123, Name : { First : “Alistair” , Last : “Terry” } }

      • However, you can restructure the BSON object to look however you would like by using the up/down/add/remove buttons.

  9. Properties

    • Name: Allows you to rename any given BSON element (Note: BSON names cannot begin with $ nor contain ‘.’s)

    • Folders

      • Children As Name/Value: Will create child nodes as name value elements e.g. Name : { First : “Alistair” ,Last : “Terry” }

      • Children As Array: Will add child nodes as member of an array e.g. Name : [“Alistair” , “Terry”]

    • Mode: The methpd used when processing the fields from the incoming data stream.

      • Data is Value: Plain data to add to the data element of the BSON pair.

      • Data is JSON: The data in a string field is already a JSON.

      • Data is BSON: The data in a blob field is already a BSON.


This tool shouldn’t be used to write to an AlteryxServer MongoDB because this can result in database corruption.