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It ensures that the ETL process functions well with other upstream and downstream processes. A Data warehouse implementation is a collection of many components, and hence integration testing is a must. Typically, system testing only includes testing within the ETL application.

4
votes
2answers
What are some best practice approaches such as: SCD type 1/2/3 nulls duplicates missing data extra data special characters FK/PK referential integrity.etc
asked Sep 28 '11 by toop
2
votes
1answer
If regularly testing the creation of different datawarehouse tables using mappings from source tables. What do you suggest is the best approach or specific SQLs to do the trick?
asked Nov 3 '11 by toop