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Bulk.find.deleteOne()
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Definition
Bulk.find.deleteOne()
Adds a single document remove operation to a bulk operations list. Use the
Bulk.find()
method to specify the condition that determines which document to remove.Bulk.find.deleteOne()
only deletes the first matching document. To remove multiple documents, seeBulk.find.delete()
.
Syntax
The command has the following syntax:
Bulk.find( <filter document> ).deleteOne()
For details on the find()
method see: Bulk.find()
Example
Create the music
collection:
db.music.insertMany( [ { artist: "DOA", genre: "punk" }, { artist: "Rick Astley", genre: "pop" }, { artist: "Black Flag", genre: "punk" }, { artist: "Justin Bieber", genre: "pop" } ] )
The following example:
Initializes a
Bulk()
operations builder.Searches for the genre
pop
.Deletes
Rick Astley
, the first matching pop artist, from the collection.
var bulk = db.music.initializeOrderedBulkOp(); bulk.find( { "genre": "pop" } ).deleteOne(); bulk.execute()
To delete all "pop"
music, use Bulk.find.delete()
instead.