If you have a large number of instances, you can manage them by binding tags to them. A tag is composed of a key-value pair. You can use tag values to further classify instances.


  • You can bind a maximum of 20 tags to an instance. Each tag must have a unique key. If you create a tag that has the same key as an existing tag, the existing tag is overwritten.
  • You can bind tags to a maximum of 50 instances at a time.
  • Tag information in each region is independent.
  • After you unbind a tag from an instance, the system deletes the tag if the tag is not bound to any other instances.


  1. Log on to the AnalyticDB for PostgreSQL console.
  2. Find the target instance, move the pointer over the icon in the Tag column, and click Edit Tags.
  3. In the dialog box that appears, click Create Tag, set Tag Key and Tag Value, and click OK.
  4. After you enter the keys and values of all tags you want to bind to the instance, click OK.