Incremental Loads like daily or weekly runs in IOP

Generally when we do incremental loads in production we opt for load replace or load update.
I think in case of RS we opt for load update while for dimensions we opt for load replace is it correct understanding?
Also should we run stage clear rowsource and stage clear dimension commands before loading RS & Dim. in order to be on safer side to clean up previous run left overs in stage area.

Integrated Operational Planning uses update when the input data stream is incremental; for
example, inventory at the end of the current week. Replace is used when the data stream is a
complete snapshot of the data in the external system.
Doing a Stage clear rowsource usually depends on whether you would need to the earlier data present in the stagging area to be kept or not. If the data in the rowsource is not used it is is usually preferred to be run Stage clear rowsource before updating the stagging area with new data.
This can also be achieved in 1 line using stage replace which is equivalent to doing stage clear + stage update.

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