You can edit resource tags by the following steps.

Editing the Tag of a Single Instance

1. Log in to the TencentDB for MySQL console. In the instance list, locate the desired instance and click More > Edit Tag in the Operation column.
2. In the pop-up dialog box, add, modify, or delete a tag, and click OK.
   

Editing the Tags of Multiple Instances

1. Log in to the TencentDB for MySQL console. In the instance list, select one or more instances and click More > Edit Tag at the top.

   

2. In the pop-up dialog box, add, modify, or delete tags, and click OK.