The steps before loading the records into the data warehouse are ...
2-Transfrom ( cleansing and combining joins)
3-Loading the data
During the firts load we do a full load in the target table .Of course the staging table receive this full load as well.
However the second time we process the records , we do a delta in the target table .
I was thinking ... does the standards recomend to load all the records again in the staging table or only the delta has to be loaded in the staging table .