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Explain ETL phases in creating a data warehouse.
written 8.3 years ago by gravatar for teamques10 teamques10 ★ 69k modified 3.0 years ago by gravatar for sagarkolekar sagarkolekar ★ 11k
advanced database management systems
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written 8.3 years ago by gravatar for teamques10 teamques10 ★ 69k
ETL for fact tables.
ETL for dimension tables.
Write procedure for all data loads.
Organise data staging area and test tools.
Plan for aggregate tables.
Determine data transformation and clearing rules.
Establish comprehensive data extraction rules.
Prepare data mapping for target data elements.
Determine all the data sources, both internal …

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