Explain differences between star and snowflake schemas?
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Theare is a Database In analysis services,How we will specify the fact table.(i.e whether we will create the measure objects for the fact tbl.) or it will reside insde the database.
Explain where do we use semi and non additive facts?
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What is a fact, dimension, measure?
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Can any one explain the hierarchies level data warehousing.
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What is surrogate key? Explain with examples.