Servers - Check Name Availability

Service:: SQL Database

API Version:: 2025-01-01

Determines whether a resource can be created with the specified name.

POST https://management.azure.com/subscriptions/{subscriptionId}/providers/Microsoft.Sql/checkNameAvailability?api-version=2025-01-01

URI Parameters

Name	In	Required	Type	Description
subscriptionId	path	True	string (uuid)	The ID of the target subscription. The value must be an UUID.
api-version	query	True	string minLength: 1	The API version to use for this operation.

Request Body

Name	Required	Type	Description
name	True	string
type	True	CheckNameAvailabilityResourceType

Responses

Name	Type	Description
200 OK	CheckNameAvailabilityResponse	The request has succeeded.
Other Status Codes	ErrorResponse	An unexpected error response.

Security

azure_auth

Azure Active Directory OAuth2 Flow.

Type: oauth2
Flow: implicit
Authorization URL: https://login.microsoftonline.com/common/oauth2/authorize

Scopes

Name	Description
user_impersonation	impersonate your user account

Examples

Check for a server name that already exists

Check for a server name that is available

Check for a server name that is invalid

Check for a server name that already exists

Sample request

POST https://management.azure.com/subscriptions/00000000-1111-2222-3333-444444444444/providers/Microsoft.Sql/checkNameAvailability?api-version=2025-01-01

{
  "name": "server1",
  "type": "Microsoft.Sql/servers"
}

from azure.identity import DefaultAzureCredential

from azure.mgmt.sql import SqlManagementClient

"""
# PREREQUISITES
    pip install azure-identity
    pip install azure-mgmt-sql
# USAGE
    python check_name_availability_server_already_exists.py

    Before run the sample, please set the values of the client ID, tenant ID and client secret
    of the AAD application as environment variables: AZURE_CLIENT_ID, AZURE_TENANT_ID,
    AZURE_CLIENT_SECRET. For more info about how to get the value, please see:
    https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal
"""


def main():
    client = SqlManagementClient(
        credential=DefaultAzureCredential(),
        subscription_id="SUBSCRIPTION_ID",
    )

    response = client.servers.check_name_availability(
        parameters={"name": "server1", "type": "Microsoft.Sql/servers"},
    )
    print(response)


# x-ms-original-file: 2025-01-01/CheckNameAvailabilityServerAlreadyExists.json
if __name__ == "__main__":
    main()

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

using Azure;
using Azure.ResourceManager;
using System;
using System.Threading.Tasks;
using Azure.Core;
using Azure.Identity;
using Azure.ResourceManager.Resources;
using Azure.ResourceManager.Resources.Models;
using Azure.ResourceManager.Sql.Models;
using Azure.ResourceManager.Sql;

// Generated from example definition: specification/sql/resource-manager/Microsoft.Sql/SQL/stable/2025-01-01/examples/CheckNameAvailabilityServerAlreadyExists.json
// this example is just showing the usage of "Servers_CheckNameAvailability" operation, for the dependent resources, they will have to be created separately.

// get your azure access token, for more details of how Azure SDK get your access token, please refer to https://learn.microsoft.com/en-us/dotnet/azure/sdk/authentication?tabs=command-line
TokenCredential cred = new DefaultAzureCredential();
// authenticate your client
ArmClient client = new ArmClient(cred);

// this example assumes you already have this SubscriptionResource created on azure
// for more information of creating SubscriptionResource, please refer to the document of SubscriptionResource
string subscriptionId = "00000000-1111-2222-3333-444444444444";
ResourceIdentifier subscriptionResourceId = SubscriptionResource.CreateResourceIdentifier(subscriptionId);
SubscriptionResource subscriptionResource = client.GetSubscriptionResource(subscriptionResourceId);

// invoke the operation
SqlNameAvailabilityContent content = new SqlNameAvailabilityContent("server1");
SqlNameAvailabilityResponse result = await subscriptionResource.CheckSqlServerNameAvailabilityAsync(content);

Console.WriteLine($"Succeeded: {result}");

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Sample response

Status code:: 200

{
  "name": "server1",
  "available": false,
  "message": "Specified server name is already used",
  "reason": "AlreadyExists"
}

Check for a server name that is available

Sample request

POST https://management.azure.com/subscriptions/00000000-1111-2222-3333-444444444444/providers/Microsoft.Sql/checkNameAvailability?api-version=2025-01-01

{
  "name": "server1",
  "type": "Microsoft.Sql/servers"
}

from azure.identity import DefaultAzureCredential

from azure.mgmt.sql import SqlManagementClient

"""
# PREREQUISITES
    pip install azure-identity
    pip install azure-mgmt-sql
# USAGE
    python check_name_availability_server_available.py

    Before run the sample, please set the values of the client ID, tenant ID and client secret
    of the AAD application as environment variables: AZURE_CLIENT_ID, AZURE_TENANT_ID,
    AZURE_CLIENT_SECRET. For more info about how to get the value, please see:
    https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal
"""


def main():
    client = SqlManagementClient(
        credential=DefaultAzureCredential(),
        subscription_id="SUBSCRIPTION_ID",
    )

    response = client.servers.check_name_availability(
        parameters={"name": "server1", "type": "Microsoft.Sql/servers"},
    )
    print(response)


# x-ms-original-file: 2025-01-01/CheckNameAvailabilityServerAvailable.json
if __name__ == "__main__":
    main()

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

using Azure;
using Azure.ResourceManager;
using System;
using System.Threading.Tasks;
using Azure.Core;
using Azure.Identity;
using Azure.ResourceManager.Resources;
using Azure.ResourceManager.Resources.Models;
using Azure.ResourceManager.Sql.Models;
using Azure.ResourceManager.Sql;

// Generated from example definition: specification/sql/resource-manager/Microsoft.Sql/SQL/stable/2025-01-01/examples/CheckNameAvailabilityServerAvailable.json
// this example is just showing the usage of "Servers_CheckNameAvailability" operation, for the dependent resources, they will have to be created separately.

// get your azure access token, for more details of how Azure SDK get your access token, please refer to https://learn.microsoft.com/en-us/dotnet/azure/sdk/authentication?tabs=command-line
TokenCredential cred = new DefaultAzureCredential();
// authenticate your client
ArmClient client = new ArmClient(cred);

// this example assumes you already have this SubscriptionResource created on azure
// for more information of creating SubscriptionResource, please refer to the document of SubscriptionResource
string subscriptionId = "00000000-1111-2222-3333-444444444444";
ResourceIdentifier subscriptionResourceId = SubscriptionResource.CreateResourceIdentifier(subscriptionId);
SubscriptionResource subscriptionResource = client.GetSubscriptionResource(subscriptionResourceId);

// invoke the operation
SqlNameAvailabilityContent content = new SqlNameAvailabilityContent("server1");
SqlNameAvailabilityResponse result = await subscriptionResource.CheckSqlServerNameAvailabilityAsync(content);

Console.WriteLine($"Succeeded: {result}");

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Sample response

Status code:: 200

{
  "name": "server1",
  "available": true
}

Check for a server name that is invalid

Sample request

POST https://management.azure.com/subscriptions/00000000-1111-2222-3333-444444444444/providers/Microsoft.Sql/checkNameAvailability?api-version=2025-01-01

{
  "name": "SERVER1",
  "type": "Microsoft.Sql/servers"
}

from azure.identity import DefaultAzureCredential

from azure.mgmt.sql import SqlManagementClient

"""
# PREREQUISITES
    pip install azure-identity
    pip install azure-mgmt-sql
# USAGE
    python check_name_availability_server_invalid.py

    Before run the sample, please set the values of the client ID, tenant ID and client secret
    of the AAD application as environment variables: AZURE_CLIENT_ID, AZURE_TENANT_ID,
    AZURE_CLIENT_SECRET. For more info about how to get the value, please see:
    https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal
"""


def main():
    client = SqlManagementClient(
        credential=DefaultAzureCredential(),
        subscription_id="SUBSCRIPTION_ID",
    )

    response = client.servers.check_name_availability(
        parameters={"name": "SERVER1", "type": "Microsoft.Sql/servers"},
    )
    print(response)


# x-ms-original-file: 2025-01-01/CheckNameAvailabilityServerInvalid.json
if __name__ == "__main__":
    main()

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

using Azure;
using Azure.ResourceManager;
using System;
using System.Threading.Tasks;
using Azure.Core;
using Azure.Identity;
using Azure.ResourceManager.Resources;
using Azure.ResourceManager.Resources.Models;
using Azure.ResourceManager.Sql.Models;
using Azure.ResourceManager.Sql;

// Generated from example definition: specification/sql/resource-manager/Microsoft.Sql/SQL/stable/2025-01-01/examples/CheckNameAvailabilityServerInvalid.json
// this example is just showing the usage of "Servers_CheckNameAvailability" operation, for the dependent resources, they will have to be created separately.

// get your azure access token, for more details of how Azure SDK get your access token, please refer to https://learn.microsoft.com/en-us/dotnet/azure/sdk/authentication?tabs=command-line
TokenCredential cred = new DefaultAzureCredential();
// authenticate your client
ArmClient client = new ArmClient(cred);

// this example assumes you already have this SubscriptionResource created on azure
// for more information of creating SubscriptionResource, please refer to the document of SubscriptionResource
string subscriptionId = "00000000-1111-2222-3333-444444444444";
ResourceIdentifier subscriptionResourceId = SubscriptionResource.CreateResourceIdentifier(subscriptionId);
SubscriptionResource subscriptionResource = client.GetSubscriptionResource(subscriptionResourceId);

// invoke the operation
SqlNameAvailabilityContent content = new SqlNameAvailabilityContent("SERVER1");
SqlNameAvailabilityResponse result = await subscriptionResource.CheckSqlServerNameAvailabilityAsync(content);

Console.WriteLine($"Succeeded: {result}");

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Sample response

Status code:: 200

{
  "name": "SERVER1",
  "available": false,
  "message": "Specified server name contains unsupported characters or is too long. Server name must be no longer than 63 characters long, contain only lower-case characters or digits, cannot contain '.' or '_' characters and can't start or end with '-' character.",
  "reason": "Invalid"
}

Definitions

Name	Description
CheckNameAvailabilityReason	The reason code explaining why the name is unavailable. Will be undefined if the name is available.
CheckNameAvailabilityRequest	A request to check whether the specified name for a resource is available.
CheckNameAvailabilityResourceType
CheckNameAvailabilityResponse	The result of a name availability check.
ErrorAdditionalInfo	The resource management error additional info.
ErrorDetail	The error detail.
ErrorResponse	Error response

CheckNameAvailabilityReason

Enumeration

The reason code explaining why the name is unavailable. Will be undefined if the name is available.

Value	Description
Invalid	Invalid
AlreadyExists	AlreadyExists

CheckNameAvailabilityRequest

Object

A request to check whether the specified name for a resource is available.

Name	Type	Description
name	string
type	CheckNameAvailabilityResourceType

CheckNameAvailabilityResourceType

Enumeration

Value	Description
Microsoft.Sql/servers	Microsoft.Sql/servers

CheckNameAvailabilityResponse

Object

The result of a name availability check.

Name	Type	Description
available	boolean	True if the name is available, otherwise false.
message	string	A message explaining why the name is unavailable. Will be undefined if the name is available.
name	string	The name whose availability was checked.
reason	CheckNameAvailabilityReason	The reason code explaining why the name is unavailable. Will be undefined if the name is available.

ErrorAdditionalInfo

Object

The resource management error additional info.

Name	Type	Description
info	object	The additional info.
type	string	The additional info type.

ErrorDetail

Object

The error detail.

Name	Type	Description
additionalInfo	ErrorAdditionalInfo[]	The error additional info.
code	string	The error code.
details	ErrorDetail[]	The error details.
message	string	The error message.
target	string	The error target.

ErrorResponse

Object

Error response

Name	Type	Description
error	ErrorDetail	The error object.