dropAllUsersFromDatabase¶

Definition定义¶

dropAllUsersFromDatabase¶

Removes all users from the database on which you run the command.

Warning

The dropAllUsersFromDatabase removes all users from the database.

The dropAllUsersFromDatabase command has the following syntax:语法如下所示：

{ dropAllUsersFromDatabase: 1,
  writeConcern: { <write concern> },
  comment: <any>
}

The dropAllUsersFromDatabase document has the following fields:

Field字段	Type类型	Description描述
dropAllUsersFromDatabase	integer	Specify 1 to drop all the users from the current database.
writeConcern	document	Optional.可选。The level of write concern for the removal operation. The writeConcern document takes the same fields as the getLastError command.
comment	any	Optional.可选。A user-provided comment to attach to this command. Once set, this comment appears alongside records of this command in the following locations: mongod log messages, in the attr.command.cursor.comment field. Database profiler output, in the command.comment field. currentOp output, in the command.comment field. A comment can be any valid BSON type (string, integer, object, array, etc). New in version 4.4.版本4.4中的新功能。

Required Access¶

You must have the dropUser action on a database to drop a user from that database.

Example示例¶

The following sequence of operations in the mongo shell drops every user from the products database:

use products
db.runCommand( { dropAllUsersFromDatabase: 1, writeConcern: { w: "majority" } } )

The n field in the results document shows the number of users removed:

{ "n" : 12, "ok" : 1 }