August 2017
Beginner to intermediate
426 pages
9h 36m
English
Content preview from Learning Informatica PowerCenter 10.x - Second Edition
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Optimizing Aggregator transformation
Always pass sorted data to Aggregator transformation to enhance the performance. When you pass the sorted data, the integration service needs to save less data in the cache, which helps in enhancement of performance.
You can also improve performance of Aggregator transformation by doing group by numeric columns. For example, consider grouping the data on department ID in place of location. It is possible to do this only as per your business requirement.
Use incremental aggregation whenever possible in the session properties to enhance the performance. When you use incremental aggregation, the performance is improved as aggregator transformation now needs to calculate lesser records.
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