Yes. I found it often necessary at my last job, either due to loading client data from various datasets and staging tables (ideally in an idempotent way to prev

Yes. I found it often necessary at my last job, either due to loading client data from various datasets and staging tables (ideally in an idempotent way to prevent mistakes or double-entries) , or because someone asked "Hey if we already have the data in system a, can we just copy the data to system b?"