db.runCommand()
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Definition
db.runCommand(command)Provides a helper to run specified database commands. This is the preferred method to issue database commands, as it provides a consistent interface between the shell and drivers.
ParameterTypeDescriptioncommanddocument or string"A database command, specified either in document form or as a string. If specified as a string,db.runCommand()transforms the string into a document."To specify a time limit in milliseconds, see Terminate Running Operations.
Compatibility
This method is available in deployments hosted in the following environments:
MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud
Note
This command is supported in all MongoDB Atlas clusters. For information on Atlas support for all commands, see Unsupported Commands.
MongoDB Enterprise: The subscription-based, self-managed version of MongoDB
MongoDB Community: The source-available, free-to-use, and self-managed version of MongoDB
Behavior
db.runCommand() runs the command in the context of the
current database. Some commands are only applicable in the context of
the admin database, and you must change your db object to
before running these commands or use db.adminCommand().
Response
The method returns a response document that contains the following fields:
Field | Description |
|---|---|
<command result> | Result fields specific to the command that ran. |
ok | A number that indicates if the command succeeded ( 1)
or failed (0). |
operationTime | The logical time of the operation. MongoDB uses the logical time to order operations. Only for replica sets and sharded clusters. If the command does not generate an oplog entry, for example, a
read operation, then the operation does not advance the logical
clock. In this case,
For operations associated with causally consistent sessions, the MongoDB drivers use the logical time
to automatically set the Read Operations and |
$clusterTime | A document that returns the signed cluster time. Cluster time is a logical time used for ordering of operations. Only for replica sets and sharded clusters. For internal use only. The document contains the following fields:
|