Update Multiple Documents

Example

The following example performs the following on the listingsAndReviews collection:

• Matches documents in which the market field of the address subdocument, address.market is "Sydney"

• Updates the price in the matched documents by 1.15 times

coll := client.Database("sample_airbnb").Collection("listingsAndReviews")
filter := bson.D{{"address.market", "Sydney"}}
// Creates instructions to update the values of the "price" field
update := bson.D{{"$mul", bson.D{{"price", 1.15}}}}
// Updates documents in which the value of the "address.market"
// field is "Sydney"
result, err := coll.UpdateMany(context.TODO(), filter, update)
if err != nil {
	panic(err)
}

View a fully runnable example.

Expected Result

After you run the full example, you can find the following updated documents in the listingsAndReviews collection:

// results truncated
...
{ "_id" : "10091713", ... , "name" : "Surry Hills Studio", ... , "price" : 181.00, ... },
{ "_id" : "9908871", ... , "name" : "Family friendly beach house", ... , "price" : 751.00, ... },
{ "_id" : "20989061", ... , "name" : "Big and sunny Narraben room", ... , "price" : 60.00, ... },
...

For an example on how to find multiple documents, see Find Multiple Documents.

Additional Information

To learn more about replacing documents, specifying query filters, and handling potential errors, see Modify Documents.

To learn more about update operators, see the MongoDB update operator reference documentation.