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what is the incremental agrrigation?
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Answer / anoymous
It is technique used to get aggregated data incrementally,
can be done at session level.
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Answer / hemlata
The first time you run an upgraded session using
incremental aggregation, the Integration Service upgrades
the index and data cache files. If you want to partition a
session using a mapping with incremental aggregation, the
Integration Service realigns the index and data cache files.
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IN A MAPPING WHEN WE USE AGGRIGATER TRANSFORMATION WE WILL USE GROUP BY PORT. IF GROUPBY IS NOT SELECTED BY DEFAULT IT WILL TAKE ONLY THE LAST COLUMN WHY????
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