You can directly create a database account in the management console in the DDS.
Go to the DDS Management Console.
Click Management Center -> Instance Management to go to the instance list page.
Select the instance for which you want to create a database account and click the instance ID of the instance to go to the instance details page.
Then click Account Management to go to the account management page.
Then click Create Account in the upper left corner. The Create Account pop-up window is displayed.
On the Create Account pop-up window, you can enter account name, authentication database, password, permission, and other options according to business needs.
After confirming the information of the account to be created, click OK in the pop-up window to create the database account.