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The Data WarehouseETL Toolkit
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Kurzbeschreibung
* Cowritten by Ralph Kimball, the world's leading data warehousing authority, whose previous books have sold more than 150,000 copies
* Delivers real-world solutions for the most time- and labor-intensive portion of data warehousing-data staging, or the extract, transform, load (ETL) process
* Delineates best practices for extracting data from scattered sources, removing redundant and inaccurate data, transforming the remaining data into correctly formatted data structures, and then loading the end product into the data warehouse
* Offers proven time-saving ETL techniques, comprehensive guidance on building dimensional structures, and crucial advice on ensuring data quality
* Delivers real-world solutions for the most time- and labor-intensive portion of data warehousing-data staging, or the extract, transform, load (ETL) process
* Delineates best practices for extracting data from scattered sources, removing redundant and inaccurate data, transforming the remaining data into correctly formatted data structures, and then loading the end product into the data warehouse
* Offers proven time-saving ETL techniques, comprehensive guidance on building dimensional structures, and crucial advice on ensuring data quality
Synopsis
Cowritten by Ralph Kimball, the world's leading data warehousing authority, whose previous books have sold more than 150,000 copies Delivers real-world solutions for the most time- and labor-intensive portion of data warehousing-data staging, or the extract, transform, load (ETL) process Delineates best practices for extracting data from scattered sources, removing redundant and inaccurate data, transforming the remaining data into correctly formatted data structures, and then loading the end product into the data warehouse Offers proven time-saving ETL techniques, comprehensive guidance on building dimensional structures, and crucial advice on ensuring data quality
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Einleitungssatz
Ideally, you must start the design of your ETL system with one of the toughest challenges: surrounding the requirements. Lesen Sie die erste Seite
Buchdeckel | Copyright | Inhaltsverzeichnis | Auszug | Stichwortverzeichnis | Rückseite
Ideally, you must start the design of your ETL system with one of the toughest challenges: surrounding the requirements. Lesen Sie die erste Seite
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20 von 20 Kunden fanden die folgende Rezension hilfreich
Another strong Data Warehousing book from Ralph Kimball
23. November 2004
Format:Taschenbuch
In this book Ralph lays down a framework for constructing the DW ETL. This is useful not just in constructing quality ETL processes, but also because Ralph's works tend to 'set' standards in data warehousing. The format of this book is similar to the Lifecycle Toolkit. Ralph takes a very staged, logical approach to the material. Some sections are just great e.g. the chapters on Extraction and Development. A small amount of the material is repeated from the Lifecycle Toolkit and Dimensional Modeling books, but no more than is needed to make this book stand on its own.
Also like the other books, this one takes a vendor agnostic approach. While this may increase the shelf-life of the book, I would have appreciated some comparisons between the major vendors out there today.
Overall: I recommend this one as a buy, even if you have Ralph's other books.
Also like the other books, this one takes a vendor agnostic approach. While this may increase the shelf-life of the book, I would have appreciated some comparisons between the major vendors out there today.
Overall: I recommend this one as a buy, even if you have Ralph's other books.
8 von 8 Kunden fanden die folgende Rezension hilfreich
Great coverage of the ETL building blocks
19. Dezember 2005
Format:Taschenbuch
This is one of the few references out there providing the building blocks of good ETL design. There is plenty of technical documentation and forums out there that are specific to one ETL tool or DBMS but this is a better starting place for ETL developers. It is required reading as ETL projects often take short cuts in design, data quality and metadata management and reporting. This leads to very expensive Data Warehouse administration costs and often a complete rebuild of load jobs.
The book is relevent for people using most ETL or ELT tools and it will remain relevent for years even as the ETL products continue to advance and mature. It is targeted at DW but the basic flow of Extract, Clean, Conform and Deliver is suitable for most types of data loads.
Good coverage of the alternatives to traditional overnight bulk loads in the section on real-time ETL systems (also describes Microbatch) as the businesses and the major ETL vendors shift to SOA.
The book is relevent for people using most ETL or ELT tools and it will remain relevent for years even as the ETL products continue to advance and mature. It is targeted at DW but the basic flow of Extract, Clean, Conform and Deliver is suitable for most types of data loads.
Good coverage of the alternatives to traditional overnight bulk loads in the section on real-time ETL systems (also describes Microbatch) as the businesses and the major ETL vendors shift to SOA.
12 von 14 Kunden fanden die folgende Rezension hilfreich
An almost complete dwh design with ETL orientation
22. März 2005
Format:Taschenbuch
This book takes almost all issues in a data warehouse design and represents them oriented to ETL features. Actually, ETLing matches the whole of the data warehouse (more or less), so the need to describe them makes this book an autonomous work you can read without referring to previous books by Kimball. Besides, I think that some technical descriptions have been better performed here: in my experience it is impossible to undertake dwh activities without (at least) a sound knowledge about general features (indexes, use of a bulk loader vs. INSERT, etc.) of RDBMS, and this paper addresses them conveniently. On the other hand, the flat style used lacks to give evidence to the very significant issues, which happen so to be mixed up with less important statements; that demands to pay high attention while reading, but a blurring boundary between subtleties and trivialities seems to be a common shortcoming in dwh literature. Even with that flaw, the ETL Toolkit turn out as an outstanding reference to state of the art of dwh technology.
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