What are the Differences between connected and unconnected
lookup?
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Answer Posted / varma koilada
Connected lookup participates in the mapping ( dataflow )
just like any other transformation. Unconnected lookup is
used when a lookup function is used instead in an expression
transformation in the mapping in which case the lookup does
not appear in the main flow ( dataflow ) of the mapping.
Connected lookup can return more than one value ( output
port ) whereas Unconnected gives only one output port.
Unconnected lookups are reusable.
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