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Informatica - What is cdc?how to use it in creation of mappings?




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asked marvit September 20, 2014 08:04 AM  

What is cdc?how to use it in creation of mappings?


           

1 Answers



 
answered By vishnoiprem   0  
CDC stands for change data capture. This is used to implement incremental load approach in data warehouse.
In this approach we traditionally keep a date field and pull data on incremental date values.
This assures that we are picking latest data (Or may be new batch data which ever is applicable).
Implementing this in mapping would require you to use parameter files which will keep HiWaterMark and Load Watermark which is repeatedly used to capture fresh data.
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