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Returns an array containing the names of all collections and views in the current database, or if running with access control, the names of the collections according to user’s privilege. For details, see Required Access.

Required Access

The db.getCollectionNames() is equivalent to:

db.runCommand( { listCollections: 1.0, authorizedCollections: true, nameOnly: true } )
  • For users with the required access (privileges that grant listCollections action on the database), the method lists the names of all collections for the database.
  • For users without the required access, the method lists only the collections for which the users has privileges. For example, if a user has find on a specific collection in a database, the method would return just that collection.


Client Disconnection

Starting in MongoDB 4.2, if the client that issued db.getCollectionNames() disconnects before the operation completes, MongoDB marks db.getCollectionNames() for termination using killOp.


The following returns the names of all collections in the records database:

use records

The method returns the names of the collections in an array:

[ "employees", "products", "mylogs", "system.indexes" ]