Answer:-
What is Lookup Component ?
A Lookup is a
selector component that returns data from a lookup flow being given a value
from a driving flow.The attributes of both flows are combined, similarly to a
join component.
Lookups can be
located in a dataset or directly in a mapping as a flow component.
When used in a
dataset, a Lookup is connected to two datastores or reusable mappings combining
the data of the datastores using the selected join type.
Lookups used as flow
components (that is, not in a dataset) can join two flows. A lookup condition
can be created by dragging an attribute from the driving flow and then the
lookup flow onto the lookup component.
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