Hi Andre.Penedo, Thanks for posting on community. Analysis: Seems like you are attempting to create a health rule using wildcard to enable dynamic database monitoring. Answer: Unfortunately, it's not possible to create a Health Rule that dynamically evaluates data from different tablespaces in AppDynamics. I tried to recreate your condition and make health rules using wildcards. However, it appears that specifying metrics using wildcards is only supported for JVM, machine, and CLR branches, and not for database custom metrics. Use Wildcards in Metric Definitions Specifying metrics using wildcards, is only supported in JVM, machine, and CLR branches. Suggestion: Currently, the best approach is to create individual health rules for each known tablespace, as you might have aware of. This ensures monitoring but requires manual updates when new tablespaces are added. However, This could be a valuable enhancement for future releases.How about submitting this as request to our Idea Exchange? Hope this help. Regards, Martina ... View more