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Modify Multiple Documents

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  • About this Task
  • Before you Begin
  • Steps
  • Example
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You can perform bulk update operations on multiple documents in Compass by using the Update Documents modal. Performing updates with the Update Documents modal helps you visualize updates to your data before you apply them.

  • You can use any syntax that works with the update parameter of db.collection.updateMany().

  • The Update Documents modal does not support any options parameters such as upsert, writeConcern, or collation.

  • Previews of the documents affected by bulk update operations are only visible if your database is configured to support transactions. For details, see Transactions.

The Update Documents modal is available starting in Compass version 1.42.0. For instructions on updating or installing the latest Compass version, see Download and Install Compass.


From the Documents tab, input a query into the Query bar. The filter criteria of the query specified applies to the documents in the Bulk Update modal. If you need to apply an update to all documents in a collection, leave the Query bar blank.


On the Documents tab, click the Update button to display the Update Documents modal. The following table summarizes the UI of the modal:

UI Element
Any filter criteria specified on the Query Bar applies to the Update Documents modal. To update the filter query, exit the Update Documents modal and modify the query in the Query Bar.
The update syntax that is applied to the documents specified in the filter criteria. You can use any syntax that works with the update parameter of the db.collection.updateMany().
A preview of documents with the update syntax applied.

In the Update text field, provide the update syntax.

The number of documents affected by the update displays at the top of the Update Documents modal.


The documents under the Preview header show how the Update syntax affects documents in your collection.


You can name and save the update query in the Update Documents modal. Saving your query adds it to your favorite queries for that collection and allows you to load and copy the query after you close the modal.

  1. Click the Save button on the bottom left of the modal.

  2. Enter a name for the update syntax.

  3. Click the green Save button.


Click Update Documents.

Compass applies the Update to the documents within the Filter expression.

The following example uses the sample_mflix dataset.

This example updates the tomatoes.viewer.numReviews and tomatoes.viewer.meter fields with the Compass Update Documents modal.

Apply a filter in the Query Bar to filter movies which have a year of 1917.

{ 'year' : 1917 }

Click the Update button, the Update Documents modal displays.

In the Update text box, paste the following syntax:

$inc: { "tomatoes.viewer.numReviews" : 1},
$set: { "tomatoes.viewer.meter" : 99 }

This syntax:

  • Increments the tomatoes.viewer.numReviews field by 1.

  • Sets the tomatoes.viewer.meter field to 99.

The Preview section populates with sample documents affected by the update query.

To view the updates to the numReviews and meter fields:

  • Click the arrow icon next to tomatoes.

  • Click the arrow icon next to viewer.

Click the Update Documents button to update the collection's data.


Modify Single Document


Clone Documents