Modeling ETL data quality enforcement tasks using relational algebra operators

Usually, a data warehouse is refreshed periodically with data gathered from disparate source systems. Nevertheless this data might not be fully accurate, probably containing serious data quality problems, such as uniqueness, misrepresentations, null values, multi-purpose fields, or inconsistent valu...

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Bibliographic Details
Main Author: Santos, Vasco (author)
Other Authors: Belo, O. (author)
Format: conferencePaper
Language:eng
Published: 2013
Subjects:
Data Warehousing Systems
ETL modeling
Data Quality Enforcement
Relational Algebra
Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática
Online Access:http://hdl.handle.net/1822/37418
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/37418

Internet

http://hdl.handle.net/1822/37418

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