update()

MongoDB Driver Function Reference

Updates all documents in a collection that meet the filter criteria.

There is no difference in usage and behavior between the update() and updateMany() functions. These functions can be considered synonyms.

db.<collection>.update(<filter>, <update>[, <options>])

Arguments

<collection>		The target collection
<filter>		A filter expression using query operators
<update>		A BSON document containing the modifications to apply
<options>		A BOSN document specifying options

Options

{ upsert: <boolean>, arrayFilters: [<document>], collation: <document>, hint: <document>, }

upsert		Specifies if a document should be created if no document matches (default: false)
arrayFilters		An array of filter documents that determine which array elements to modify for an update operation on an array field.
collation		A document specifying the collation
hint		A document specifying a hint

Example

db.employees.update({ salary: { $gt: 700000 }}, { $set: { bonus: 50000 }});

Sets the bonus in all documents from the employee collection with a salary greater than 700000 to 50000.

home | MongoDB Driver Function Reference | MongoDB Driver