Is it possible to have the ADT tables keeping the existing data and only update new data as an option?

Example, once devices are queried, the information of online devices will be populated into the ADT, the next day, some of those devices might be offline and others online again, and again the table will only collect information of the online devices at that time and previous data will be lost because devices might be offline.

Have ADT table that keeps building up on information as devices comes online.