ETL - Extraction ,Transformation and Loading
Posted on June 16th, 2008 by Kamlesh Jethwa
ETL ( Extraction ,Transformation and Loading )
This phase of ETL ( Extraction ,Transformation and Loading ) takes the most of any Datawarehousing project.
This phase has to get the source data and following:
· Understand the Business Rules
· Understand the necessary Columns of tables.
· Understand the Logical data model
· Understand the Physical data model
The Developer has to produce following deliverables:
· ETL Script / ETL Package in the ETL tool
· Data Mapping Document
Next >> OLAP Cube Design
Filed under: Ad Hoc Reporting, Business Intelligence, DataWarehousing, Discoverer, Interview Questions(& answers)
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