robbiblubber.org

help | login | search:  
>>

show wiki  show source  compare to current  compare to previous  read  history 


update()


MongoDB Driver Function Reference

Updates the first document in a collection that meets the filter criteria.



db.<collection>.updateOne(<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.updateOne({ salary: { $gt: 700000 }}, { $set: { bonus: 50000 }});


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




home | MongoDB Driver Function Reference | MongoDB Driver