We want to build a data warehouse in our organization by using an ERP application as the main source. But, I read in an article that using ERP as the main source and doing dimensional modeling for data warehousing is difficult. Is that true? Please give me some suggestions.


Chuck Kelley's Answer: I think it is difficult only because it is difficult to find and extract the "right" data out of most ERP applications. However, doing dimensional modeling has nothing to do with the extraction, transformation and load (ETL) process, so I would not let that hold me back.

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