Mongo.getDBs() (mongosh method方法)

Description描述

Mongo.getDBs()

Returns information about all available databases. Mongo.getDBs() uses the listDatabases command.返回有关所有可用数据库的信息。Mongo.getDBs()使用listDatabases命令。

The Mongo.getDBs() method doesn't take any parameters.Mongo.getDBs()方法不接受任何参数。

Compatibility兼容性

This method is available in deployments hosted in the following environments:此方法在以下环境中托管的部署中可用：

• MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud：云中MongoDB部署的完全托管服务

• MongoDB Enterprise: The subscription-based, self-managed version of MongoDB：MongoDB的基于订阅的自我管理版本
• MongoDB Community: The source-available, free-to-use, and self-managed version of MongoDB：MongoDB的源代码可用、免费使用和自我管理版本

Example示例

To list the available databases and metadata for the local MongoDB instance:要列出本地MongoDB实例的可用数据库和元数据，请执行以下操作：

db.getMongo().getDBs()

The db.getMongo() method returns the connection to the current MongoDB instance. The Mongo.getDBs() output resembles:db.getMongo()方法返回到当前MongoDB实例的连接。Mongo.getDBs()的输出类似于：

{
 databases: [
   { name: 'admin', sizeOnDisk: Long("225280"), empty: false },
   { name: 'config', sizeOnDisk: Long("212992"), empty: false },
   { name: 'local', sizeOnDisk: Long("2400256"), empty: false },
   { name: 'test', sizeOnDisk: Long("303104"), empty: false }
 ],
 totalSize: Long("3141632"),
 totalSizeMb: Long("2"),
 ok: 1,
 '$clusterTime': {
   clusterTime: Timestamp({ t: 1640186473, i: 1 }),
   signature: {
     hash: Binary(Buffer.from("0000000000000000000000000000000000000000", "hex"), 0),
     keyId: Long("0")
   }
 },
 operationTime: Timestamp({ t: 1640186473, i: 1 })
 }

The databases are listed in the highlighted lines.数据库列在突出显示的行中。