DescribeDatabases-阿里云帮助中心

This API retrieves information about databases in an RDS instance.

Operation description

Supported engines

RDS MySQL
RDS PostgreSQL
RDS SQL Server
RDS MariaDB

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

rds:DescribeDatabases

get

*DBInstance

acs:rds:{#regionId}:{#accountId}:dbinstance/{#dbinstanceId}

rds:ResourceTag
rds:ResourceTag
rds:ResourceTag
rds:ResourceTag

None

Request parameters

Parameter	Type	Required	Description	Example
DBInstanceId	string	Yes	The instance ID. You can call the `DescribeDBInstances` operation to obtain it.	rm-uf6wjk5****
DBName	string	No	The name of the database.	testDB01
DBStatus	string	No	The database status. Valid values: Creating Running Deleting	Creating
PageSize	integer	No	The number of entries to return on each page. Valid values: 30 50 100 Default value: 30.	30
PageNumber	integer	No	The page number. The value must be an integer that is greater than 0 and does not exceed the maximum value of the Integer data type. Default value: 1.	1

Response elements

Element	Type	Description	Example
	object	The response data.
Databases	object	A container for the database list.
Database	array<object>	An array of databases.
	array<object>	A database object.
Accounts	object	The accounts associated with the database.
AccountPrivilegeInfo	array<object>	A list of accounts that have privileges on the database.
	object	Details of an account and its privileges on the database.
Account	string	The account name.	test
AccountPrivilege	string	The privileges of the account on the database. Valid values: ReadWrite: Read and write. ReadOnly: Read-only. DMLOnly: DML only. DDLOnly: DDL only.	DMLOnly
AccountPrivilegeDetail	string	The specific privileges of the account on the database.	SELECT
AdvancedInfo	object	A container for advanced database properties.
AdvancedDbProperty	array<object>	An array of advanced database properties. Note This parameter is returned only for SQL Server instances.
	object	An advanced database property.	{ "allowedValues": [ "OFF", "ON" ], "databasePropertyName": "ansi_nulls", "allowModify": true, "excludeLock": "0", "currentValue": "OFF" }
BasicInfo	object	A container for basic database properties.
BasicDbProperty	array<object>	An array of basic database properties. Note This parameter is returned only for SQL Server instances.
	object	A basic database property.	{ "allowedValues": [ "CHECKSUM" ], "databasePropertyName": "page_verify", "allowModify": true, "excludeLock": "0", "currentValue": "CHECKSUM" }
CharacterSetName	string	The character set name.	utf8
Collate	string	The collation of the database. A value of `C` specifies the default locale. Note This parameter is returned only for PostgreSQL instances.	C
ConnLimit	string	The connection limit for the database. A value of `-1` indicates no limit. Note This parameter is returned only for PostgreSQL instances.	-1
Ctype	string	The character classification type. Note This parameter is returned only for PostgreSQL instances.	en_US.utf8
DBDescription	string	The database description.	testdb
DBInstanceId	string	The ID of the instance that hosts the database.	rm-uf6wjk5****
DBName	string	The database name.	testDB01
DBStatus	string	The database status. Valid values: Creating: The database is being created. Running: The database is in use. Deleting: The database is being deleted. Cold: The database is in cold storage.	Creating
Engine	string	The database engine.	MySQL
PageNumber	integer	The page number.	1
PageSize	integer	The page size.	30
RuntimeInfo	object	A container for runtime database properties.
RuntimeDbProperty	array<object>	An array of runtime database properties. Note This parameter is returned only for SQL Server instances.
	object	A runtime database property.	{ "allowedValues": [], "databasePropertyName": "TotalDataSizeInMB", "allowModify": false, "currentValue": "5.38" }
Tablespace	string	The tablespace of the database. Note This parameter is returned only for PostgreSQL instances.	pg_default
TotalCount	integer	The total record count. Note This parameter is returned only for SQL Server instances.	5
DuckDBEnabled	boolean	Specifies whether DuckDB integration is enabled.
RequestId	string	The request ID.	2603CA96-B17D-4903-BC04-61A2C829CD94

Examples

Success response

JSON format

{
  "Databases": {
    "Database": [
      {
        "Accounts": {
          "AccountPrivilegeInfo": [
            {
              "Account": "test",
              "AccountPrivilege": "DMLOnly",
              "AccountPrivilegeDetail": "SELECT"
            }
          ]
        },
        "AdvancedInfo": {
          "AdvancedDbProperty": [
            {
              "allowedValues": [
                "OFF",
                "ON"
              ],
              "databasePropertyName": "ansi_nulls",
              "allowModify": true,
              "excludeLock": "0",
              "currentValue": "OFF"
            }
          ]
        },
        "BasicInfo": {
          "BasicDbProperty": [
            {
              "allowedValues": [
                "CHECKSUM"
              ],
              "databasePropertyName": "page_verify",
              "allowModify": true,
              "excludeLock": "0",
              "currentValue": "CHECKSUM"
            }
          ]
        },
        "CharacterSetName": "utf8",
        "Collate": "C",
        "ConnLimit": "-1",
        "Ctype": "en_US.utf8",
        "DBDescription": "testdb",
        "DBInstanceId": "rm-uf6wjk5****",
        "DBName": "testDB01",
        "DBStatus": "Creating",
        "Engine": "MySQL",
        "PageNumber": 1,
        "PageSize": 30,
        "RuntimeInfo": {
          "RuntimeDbProperty": [
            {
              "allowedValues": [],
              "databasePropertyName": "TotalDataSizeInMB",
              "allowModify": false,
              "currentValue": "5.38"
            }
          ]
        },
        "Tablespace": "pg_default",
        "TotalCount": 5,
        "DuckDBEnabled": false
      }
    ]
  },
  "RequestId": "2603CA96-B17D-4903-BC04-61A2C829CD94"
}

Error codes

HTTP status code	Error code	Error message	Description
400	%s	DB Operation Failed:%s.
400	Database.ConnectError	Database connect error. please check instance status and database processlist	A database connection error occurred. Check the instance state and the database connection pool.
400	InvalidDBInstanceStatus.NotSupport	The Specified instance status is not supported to query account list.
400	Database.QueryError	Query Db failed, please check input value and instance status.	Failed to query the database. Check the specified parameters and the instance state.
400	SqlExcutionFailed	Database is in transition. Try the statement later.	The database is being modified. Try again later.
400	SqlExecuteFailedOrTimeout	sql command execution failed or timed out:%s.	SQL command execution failed or timed out
400	ConcurrentLimit	The request processing has been concurrent limit.	Request processing has reached the concurrency limit.
400	Order.ComboInstanceNotAllowOperate	A package instance is not allowed to operate independently.	A package instance is not allowed to operate independently.
400	Price.PricingPlanResultNotFound	Pricing plan price result not found.	Pricing plan price result not found.
400	Order.NoRealNameAuthentication	You have not passed the real-name authentication and do not meet the purchase conditions. Please log in to the user center for real-name authentication.	You have not passed the real-name authentication and do not meet the purchase conditions. Please log in to the cost and cost for real-name authentication.
400	InsufficientAvailableQuota	Your account quota limit is less than 0, please recharge before trying to purchase.	Your account available limit is less than 0, please recharge before trying to purchase.
400	CommodityServiceCalling.Exception	Failed to call commodity service.	Failed to call commodity service return.
400	RegionDissolvedEOM	Dear customer, Alibaba Cloud plans to optimize and adjust the current region. Cloud services in this region will cease operations. You are currently unable to operate new purchase orders. Thank you for your understanding and support.	Hello, Alibaba Cloud plans to optimize and adjust the current region. Cloud services in this region will stop operating. In order to ensure your business continuity and smooth transition of data migration, you are currently unable to operate new purchase orders. Thank you for your understanding and support.
400	Commodity.InvalidComponent	The module you purchased is not legal, please buy it again.	The module you purchased is not legal, please buy it again.
400	RegionEndTimeDissolvedAustralia	Cloud services in the Australia (Sydney) region will be discontinued. Set the validity date to September 30, 2024 or earlier than September 30, 2024.	Hello customer, this area has been abolished.
400	Price.CommoditySys	Commodity system call exception.	Commodity system call exception.
400	Pay.InsufficientBalance	Insufficient available balance.	Insufficient available balance.
400	Order.PeriodInvalid	There is a problem with the period you selected, please choose again.	There is a problem with the period you selected, please choose again.
400	pay.noCreditCard	Account not bound to credit card.
400	Order.InstHasUnpaidOrder	There is an unpaid order for the service you have purchased. Please pay or void it before placing the order.	There is an unpaid order for the service you have purchased. Please pay or void it before placing the order.
400	noAvailablePaymentMethod	No payment method is specified for your account. We recommend that you add a payment method.	No payment method has been specified for your account. We recommend that you add a payment method.
400	BasicInfoUncompleted	Your information is incomplete. Complete your information before the operation.	Your basic information is not complete, please complete your basic information before operation.
400	Risk.RiskControlRejection	Your account is abnormal, please contact customer service for details.	Your account is abnormal, please contact customer service for details.
400	Api.NotSupport	Specified api is not supported.	The current interface does not support.
400	ContainForbiddenLabelError	There is a label that prohibits placing orders. Please contact your distributor for assistance.	You cannot place the order because a tag indicates that order placement is prohibited. Contact your distributor.
400	InvalidDBInstanceId.NotFound	The DBInstanceId provided does not exist in records.	The DBInstanceId provided does not exist.
400	InvalidInstanceLevel.DiskType	Specified instance level not support request disk type	The current instance type does not support the specified storage type.
400	InvalidParam	Sepcified wal level Parameter is invalid. There are still logical slots in instance, so it can not be set as replica.	The specified wal_level parameter is invalid. There is still a copy slot in the instance, so it cannot be set to replica.
400	KmsApiError	User secret key invalid.	The user key is invalid.
400	System.SaleValidateFailed	Sales expression validation system error.	A system error occurs when the sales expression is verified.
400	Abs.InvalidAccount.NotFound	account is not found.	The account does not exist.
400	ColdData.EngineVersionNotSupport	The current instance engine version not support coldDataEnabled.	The current instance engine version not support coldDataEnabled.
400	ColdData.MinorVersionNotSupport	The current instance minor version not support coldDataEnabled.	The current instance minor version not support coldDataEnabled.
400	IncorrectTargetClasscode	The current instance type does not support this operation.	This operation is not supported by the instance type.
400	InvalidConnectionString.Duplicate	Specified connection string already exists in the RDS.	The link address name is duplicate. Please reset the connection string.
400	RequiredParam.NotFound	Required input param is not found.
400	Parameters.Invalid	Parameter error, please check the parameters.	Parameter error, please check the parameters.
400	BackupPolicyNotSupport	Cold Data won't open with CrossBackup or Flash Backup, please check Backup Policy.	Cold Data won't open with CrossBackup or Flash Backup, please check Backup Policy.
400	InvalidReleasedKeepPolicy.Format	Specified Released Keep Policy is not valid.	Specified Released Keep Policy is not valid.
400	InvalidDBInstanceEngineType.Format	the DB instance engine type does not support this operation.	This operation is not supported for the database engine of the instance.
400	Pay.NoCreditCard	No credit cards.	No credit cards.
400	VpcNetworkTypeNotSupport	The vpc network type instance does not support this operation.	The vpc network type instance does not support this operation.
400	MirrorInsExists	Specified DB instance mirror ins already existed.	Specified DB instance mirror ins already existed.
400	UnsupportedClassCode	The specified DB instance class stops selling.	The specified DB instance class stops selling.
400	InvalidBackupSet	The specified database does not exist in the backup set.	The specified database does not exist in the backup set.
400	OrdTCommodityQueryError	Failed to query for product.	Failed to query product.
400	ProductInstanceReleased	The instance has been released. Please check before placing the order.	The instance has been released, please verify and place an order.
400	RegionEndTimeDissolvedIndia	The region is no longer supported.	The region is no longer supported.
400	InvalidCharacter.DbOrAccount	The database name or account name contains invalid characters.	The database name or account name contains illegal characters.
500	ExternalFailure	The request processing has failed due to external service failure.	The request processing has failed due to external service failure.
500	RequestMetaDataFailed	The service request failed. Please try again later or contact service personnel.	The service request failed. Please try again later or contact service personnel.
500	InvokeProxyFailure	The request processing has failed due to service failure of rds api.	The request failed to be processed due to an RDS API failure.
403	OrderStatus.UnPaid	The specified db instance has unpaid order.	The instance has an unpaid order. Please pay first and try again.
403	InvalidReduceDiskSize	The storage capacity after the scale-down must be larger than the used amount.	The scale-in target capacity cannot be less than the current storage space usage
403	CloudSSDNotSupport	Cloud ssd does not support this operation, please upgrade to essd.
403	InvalidUserOperatorPermission	The user permission does not support this operation.	The user is not authorized to perform this operation.
403	InvalidVswitchId	Specified conn vswitch id is not valid.
403	IncorrectMinorVersion	Current engine minor version does not support operations.	This operation is not supported for the current minor engine version.
403	OperationDenied.ZoneResource	There is no available zone for inventory.	There is no available zone for inventory.
403	NotInFlowController	Sorry,no permission.	Sorry,no permission.
403	InvalidKmsKey	Kms key is disabled.
403	InvalidInstanceLevel.Malformed	Current DB instance level does not support this operation.	The specified database instance type does not support this operation.
404	InvalidClusterKms	The current instance does not authorized to access the Key Management Service.	The instance does not have permissions to access Key Management Service (KMS).
404	Request.NotFound	The requested resource is not available.	The requested resources are unavailable.
404	HostInfo.NotFound	The specified host info is not found.
408	NetworkOrSqlTimeoutError	Failed to create login due to potential SQL Server overload or other issues that may cause the login creation fail. Please retry later.	The query failed due to timeout caused by potential SQL Server overload or excessive number of instance accounts.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.