Updated on 2025-10-24 GMT+08:00

Deleting a Database Role

This API is used to delete the database role of a specified instance.

This API applies only to DDS Community Edition.
Default system roles cannot be deleted.
This operation is not allowed if the DB instance is in any of the following statuses: creating, changing instance class, changing port, frozen, restarting, or abnormal.

URI format
DELETE /v3/{project_id}/instances/{instance_id}/db-role
URI example
https://dds.ap-southeast-1.myhuaweicloud.com/v3/0549b4a43100d4f32f51c01c2fe4acdb/instances/659914406d2c4c76bce6a028ce8d8e0din02/db-role

**Table 1** Path parameters
Name	Mandatory	Type	IN	Description
project_id	Yes	string	path	Explanation: Project ID of a tenant in a region. To obtain the project ID, see Obtaining a Project ID. Constraints: N/A Value range: N/A Default value: N/A
instance_id	Yes	string	path	Explanation: Instance ID, which can be obtained by calling the API described in Querying Instances and Details. If you do not have an instance, call the API described in Creating a DB Instance to create one. Constraints: N/A Value range: N/A Default value: N/A

**Table 2** Request header parameters
Name	Mandatory	Type	IN	Description
X-Auth-Token	Yes	string	header	Definition User token obtained from IAM. For details, see Authentication. Constraints N/A Range N/A Default Value N/A

**Table 3** Parameter description
Name	Type	Mandatory	Description
role_name	String	Yes	The role name. The default database user of the system cannot be deleted. The value must be 1 to 64 characters and can contain only letters (from A to Z or from a to z), digits (from 0 to 9), hyphens (-), and periods (.).
db_name	String	Yes	The name of the database to which the role belongs. The value must be 1 to 64 characters and can contain only letters (from A to Z or from a to z), digits (from 0 to 9), and underscores (_).

{ 
    "role_name": "testRole", 
    "db_name":"testDb"  
}

Example Responses

{}

For more information, see Status Code.

For more information, see Error Code.

Parent topic: Managing Databases and Users