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    PolarDB:CheckDBNameZonal

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    PolarDB:CheckDBNameZonal

    Last Updated:Nov 21, 2025

    Checks the name of a database in an edge cluster for PolarDB on ENS.

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    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:CheckDBNameZonal

    get

    *All Resource

    *

    None

    None

    Request syntax

    POST  HTTP/1.1

    Request parameters

    Parameter

    Type

    Required

    Description

    Example

    DBClusterId

    string

    Yes

    The ID of the cluster.

    pc-****************

    DBName

    string

    Yes

    The name of the database.

    test_db

    Response elements

    Element

    Type

    Description

    Example

    object

    RequestId

    string

    The ID of the request.

    CDB3258F-B5DE-43C4-8935-CBA0CA******

    DBName

    string

    The name of the database.

    test_db

    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.