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Business Intelligence with MicroStrategy Cookbook by Davide Moraschi

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Setting up a data warehouse connection and selecting tables

At the core of a data warehouse, there are facts and dimensions. They can be organized in star schemas, snowflake schemas; they can be more or less complex, and to some extent undocumented. This is not a book about dimensional modeling and discussing how a database layout works better than other is out of scope. Some common sense rules always apply: consistent column naming can be useful (user_id, iduser, user_code, key_user, yetanotheruserid, you name it…), constraints on tables help to pull the strings and find a way into unexplored databases. NOT NULL fields also come in handy.

I personally had my share of good and bad data. I always remember a development team manager who once asked ...

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