Modifying a Database User

Updated on 2025-02-05 GMT+08:00

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Function

This API is used to change the username and password for a registered database user on DAS. This API does not change the username and password of the database user object on the DB instance. Ensure that the entered username and password are valid. Currently, only MySQL instances are supported.

URI

PUT /v3/{project_id}/instances/{instance_id}/db-users/{db_user_id}

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Explanation: Project ID of a tenant in a region To obtain this value, see Obtaining a Project ID. Constraints: N/A Values: The value can contain 32 characters. Only letters and digits are allowed. Default value: N/A
instance_id	Yes	String	Explanation: Unique ID of an instance Constraints: N/A Values: The value can contain 32 characters. Only letters and digits are allowed. Default value: N/A
db_user_id	Yes	String	Explanation: Database user ID Constraints: N/A Values: The value is a UUID containing 36 characters. Only letters, digits, and hyphens (-) are allowed. Default value: N/A

Request Parameters

**Table 2** Request body parameters
Parameter	Mandatory	Type	Description
db_username	Yes	String	Explanation: Database username Constraints: N/A Values: N/A Default value: N/A
db_user_password	Yes	String	Explanation: Database user password Constraints: N/A Values: N/A Default value: N/A

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
result	String	Explanation: Modification result. If the modification is successful, OK is returned. Values: OK

Example Request

Changing the database username to user

PUT https://das.cn-north-1.myhuaweicloud.com/v3/054e292c9880d4992f02c0196d3ea468/instances/da304cd5bbb944de828759bc7be3d3fein01/db-users/24c0c455-1f0e-448b-acb2-6e184b4ffcfa

{
  "db_username" : "user",
  "db_user_password" : "password"
}

Example Response

Status code: 200

Success

{
  "result" : "OK"
}

Status Codes

Status Code	Description
200	Success.
400	Client error.
500	Server error.

Error Codes

See Error Codes.

Parent topic: Cloud DBA

Previous topic: Registering a Database User

Next topic: Deleting a Database User

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