Kimball, Ralph, The data warehouse ETL toolkit : practical techniques for extracting, cleaning, conforming, and delivering data / Ralph Kimball, Joe Caserta. - Third edition - Indianapolis, IN : John Wiley & Sons, 2004 - xxxiv, 491 p. : 24 cm ISBN: 9780764567575 Subjects--Topical Terms: Data warehousing.Database design. Subjects--Index Terms: Tệp dữ liệu Cơ sở dữ liệu Dewey Class. No.: 005.74 / KIM