CheckDBName - PolarDB - Alibaba Cloud Documentation Center

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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

polardb:CheckDBName

get

*dbcluster

acs:polardb:{#regionId}:{#accountId}:dbcluster/{#dbclusterId}

None

Request parameters

Parameter	Type	Required	Description	Example
DBClusterId	string	Yes	The cluster ID. Note Call the DescribeDBClusters operation to query the details of all clusters in a destination region, including cluster IDs.	pc-****************
DBName	string	Yes	The database name.	test_db

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	CDB3258F-B5DE-43C4-8935-CBA0CA******
DBName	string	The database name.	test_db

If the specified database name is invalid, the error message Specified DB name is not valid is returned.
If a database with the specified name already exists, the error message Specified DB name already exists is returned.

Examples

Success response

JSON format

{
  "RequestId": "CDB3258F-B5DE-43C4-8935-CBA0CA******",
  "DBName": "test_db"
}

Error codes

HTTP status code	Error code	Error message	Description
400	InvalidDBName.Duplicate	The specified DB name already exists.	The specified DBName parameter already exists.
400	InvalidAccountName.Malformed	The specified parameter AccountName is not valid.	The specified AccountName parameter is invalid.
404	InvalidDBClusterId.Malformed	The specified parameter DBClusterId is not valid.	The specified DBClusterId parameter is invalid.
404	InvalidDBClusterId.NotFound	The DBInstanceId provided does not exist in our records.	The specified DBClusterId parameter does not exist in the current record.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.