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is this approcah right?

Posted: Wed Oct 01, 2008 5:18 am
by times29
hi,
Trying to build fact table, I am thinking of this approach please let me if anything can be improved

Stg_table----transformer----changecapture---filter --(update and insert on fct table)


2) all look ups for dimensions on transformer

(Master Table will be stage_table and all keys will come from dimension table)

Thanks

Posted: Wed Oct 01, 2008 10:03 pm
by vasa_dxx
To apply CDC u need 2 Lookup to check for Non-key field value changes.
Include a Lookup between Stg_table & Transformer.

Posted: Wed Oct 01, 2008 10:07 pm
by ray.wurlod
Welcome aboard.

Unfortunately you are wrong in your assertion. The change detection stages can take one input directly from the target table. No Lookup stage is required.

I suspect you first learned change detection in a server job environment.