Wednesday, March 7, 2012

How to implement incremental load in fact tables.

Hi all,

i have a fact table which loads through package,when

i m trying to load this table by running the package,i m truncating the

fact table and loading the fresh data,instaed of this without

truncating the fact table i have to implement the incremental logic in

this.


For this i can use SCD or Conditional split,but problem

here is i have many source tables to load this fact table,so its

very difficult to trace the changes in different source tables.

can any one help me out in this?You should stage all of your source tables along with the current load date. That way, when you select from your source staging tables, you can retrieve the data based on that date field, thereby only picking up the new/changed records.

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