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Answer Posted / pavani
initial load means :when ever the target table is empty on
that time we load from starting year data to up to this day
data we are loading into the taget like facts or dwh or
datamarts.this is initial loading.that data loadini time is
max20 to 30 hours time it takes ex 90 gb data something.
incremental loading means just coming data that means today
data that data load into target table this is called as
incremental loading(already previos data is loading into
tagets then just now comming data is loading into target
table that means updated data)it takes loading time is 3 to
4 hours.
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