What is the difference between lookup override and souce
qualifier override ?
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Answer Posted / kunal
1) SQ Override- In case of SQ override the unwanted columns
are filtered out and the required columns based on some
filter condition returned as an input to the next
transformation.
LKP Override- In case of LKP override, look up conditions
are checked and the records passed to next
transformation.Look up override can be applied on source or
target table.
2) In case of SQ override user has to mention order by
clause when required.
In LKP override the look up trans. internally apply order
by clause and if user want to use order by clause, user has
to mark '--' to disable the lkp order by clause.
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