You can call this operation to query the details of an instance.

Request parameters

Name Type Required Description
<Common request parameters> -  Yes For more information, see Common parameters.
Action String  Yes The operation that you want to perform. Set the value to DescribeDBInstanceAttribute.
DBInstanceId String Yes The instance ID.

Response parameters

Name Type Description
<Common response parameters> - For more information, see Common response parameters.
Items List<DBInstanceAttribute> The list of instance details.
Table 1. DBInstanceAttribute parameters
Name Type Description
AvailabilityValue String The service availability of the current instance. Unit: percentage.
ConnectionMode String
  • Performance: standard connection mode
  • Safty: safe connection mode
ConnectionString String The connection string that you can use to connect to a database.
CreationTime String  The time when you create an instance. The format is YYYY-MM-DDThh:mm:ssZ, such as 2011-05-30T12:11:4Z.
DBInstanceClass String  The group type.
DBInstanceClassType String  The group type families:
  • s: shared instances
  • x: general instances
  • d: dedicated instances
  • h: dedicated hosts (DDH)
DBInstanceCpuCores String The number of vCPU cores.
DBInstanceDescription String  The description of an instance.
DBInstanceDiskMBPS Long The maximum disk throughput of a group. Unit: Mbps.
DBInstanceGroupCount String The number of groups.
DBInstanceId String  The instance ID.
DBInstanceMemory Long The memory capacity of a group. Unit: MB.
DBInstanceNetType String
  • Internet: the Internet
  • Intranet: a private network
DBInstanceStatus String For more information about the instance status, see Instance statuses.
DBInstanceStorage Long Disk space of an instance. Unit: GB.
Engine String 
  • Internet: the Internet
  • Intranet: a private network
EngineVersion String  The version of a database.
ExpireTime String The expiration time of the instance.
HostType String  The disk type of a group.
  • 0: SSD
  • 1: SATA
InstanceNetworkType String
  • Classic: classic networks.
  • VPC: VPC networks.
LockMode String
  • Unlock: in normal operation
  • ManualLock: locked manually
  • LockByExpiration: locked automatically after the instance expires
  • LockByRestoration: locked automatically before a rollback
  • LockByDiskQuota: locked automatically after the instance space is full
MaintainEndTime String The end time of instance maintenance.
MaintainStartTime String The start time of instance maintenance.
MaxConnections Integer The maximum number of concurrent connections to an instance.
PayType String  The billing methods:
  • Postpaid: Pay-As-You-Go
  • Prepaid: Subscription
Port String  The port number that you can use to connect to an instance.
RegionId String  The name of a region.
SecurityIPList String  The whitelist of IP addresses that are allowed to access the instance.
VpcId  String  The name of a VPC.
ZoneId String The name of a zone.

Sample requests
&<Common request parameter>
Sample responses

XML format


JSON format

                "ExpireTime": "2014-10-10T16:00:00Z",