You can delete database accounts you have created.
Deleted database accounts cannot be restored. Exercise caution when deleting an account.
Constraints
This operation is not allowed when another operation is being performed on your DB instance.
Procedure
Log in to the management console.
Click in the upper left corner and select a region and a project.
Click Service List. Under Databases, click GaussDB(for MySQL).
On the Instances page, click the target DB instance.
In the navigation pane, choose Accounts. On the displayed page, locate the account that you want to delete and click Delete in the Operation column. In the displayed dialog box, click OK.