June 9, 2009 at 3:15 am
How we can increase the performance while transforming the large amount of data in SSIS using SCD. Thanks
June 9, 2009 at 8:03 am
Hello,
Using SCD Transformation in SSIS is a performance bottleneck ,else i would suggest you to go with using Lookup, OLEDB, Union All transformation and conditional split transformations to get the required performance.
Lookup's is the only place where you are better tune the performance of the Lookup cache, you can leverage the Full Cache or Partial Cache in SSIS.
let me know if you require any assistance.
Thanks
Chandu
June 9, 2009 at 8:32 am
There is no law to do ETL in the Dataflow ;-). In my opinion there are cases where the database is stronger.
So you could save intermediate results in staging/transformation tables and then do the SCD-Work with a stored procedure. There you shouldn't process record by record but do SET-Based work. For example for a SCD2 Dimension you would need one update-Statement and one insert-Statement.
To
June 9, 2009 at 7:00 pm
abhijitka (6/9/2009)
How we can increase the performance while transforming the large amount of data in SSIS using SCD. Thanks
Have you checked Todd McDermid's SCD component?
January 7, 2011 at 2:51 am
Here are some more alternatives to improve the performance of a Slowly Changing Dimension:
http://microsoft-ssis.blogspot.com/2011/01/slowly-changing-dimension-alternatives.html
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