Table Refresh Indication

Does anyone know how to create an indication of a table refreshing?

For example: I have a button Action Control Item in a Text Area that refreshes a data table. This table is connected to a database, so sometimes the refresh takes <1s, sometimes it can take much longer (>15s). Either of these scenarios could confuse users. So, I would like to have an indicator (like a Dynamic item) that says the data table has been refreshed or not, or maybe the last time the table has been successfully been refreshed. Is this possible??

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