db.dropAllUsers()

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Definition定义

db.dropAllUsers(writeConcern)

Removes all users from the current database.从当前数据库中删除所有用户。

Warning

The dropAllUsers method removes all users from the database.dropAllUsers方法从数据库中删除所有用户。

The dropAllUsers method takes the following arguments:dropAllUsers方法采用以下参数：

Field字段Type类型Description描述
writeConcern document Optional.可选。The level of write concern for the removal operation. 删除操作的写入关注级别。The writeConcern document takes the same fields as the getLastError command.writeConcern文档采用与getLastError命令相同的字段。

The db.dropAllUsers() method wraps the dropAllUsersFromDatabase command.db.dropAllUsers()方法包装dropAllUsersFromDatabase命令。

Behavior行为

Replica set复制集

If run on a replica set, db.dropAllUsers() is executed using majority write concern by default.如果在副本集上运行，默认情况下，db.dropAllUsers()将使用majority写入关注点执行。

Required Access所需访问权限

You must have the dropUser action on a database to drop a user from that database.要从数据库中删除用户，必须对数据库执行dropUser操作。

Example示例

The following db.dropAllUsers() operation drops every user from the products database.下面的db.dropAllUsers()操作会从products数据库中删除每个用户。

use products
db.dropAllUsers( {w: "majority", wtimeout: 5000} )

The n field in the results document shows the number of users removed:结果文档中的n字段显示删除的用户数：

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