Fast Track to MDX

2. 2006 Auflage 2005
ISBN: 978-1-84628-174-7
Verlag: Springer Nature Singapore

Buch, Englisch, 310 Seiten, Book w. online files / update, Format (B × H): 172 mm x 246 mm, Gewicht: 1190 g

IloveBusinessIntelligence.IloveBIbecauseitisallaboutbecomingbetter. BI is all about empowering us with knowledge and that knowledge is the power to realize our full potential. As Zorge the spy said, “knowledge is power”, and who doesn’t love to have the power to know, to understand and to make intelligent decision? I do. Since the dawn of the modern information system it was obvious that the information accumulated in the machine is wasted if there is no way to analyze it and learn from it. From as early as the 1950s, data analysis systems and, later, decision support systems were designed, developed anddeployedwiththatintent.However,onlyinthelastdecadehavethese systems become both reasonably affordable and mainstream and their business impact indisputable. The last decade has also seen the emergence of OLAP as the centerpiece of the BI technologies. The OLAP multidimensional databases combine incredible performance with unsurpassed analytical power and, in my opinion, are the foundation of the BI platform. While the performance differences between the multidimensional da- bases and the traditional relational databases are very significant, Moore’s law, which states that the hardware computing power doubles every 18 months, renders this advantage of the OLAP databases temporary. Sooner or later, the raw computing power of the common server machines will be sufficient to provide the performance needed for sophisticated analysis even when the data is stored in a relational database.

Zielgruppe

Professional/practitioner

Autoren/Hrsg.

Whitehorn, Mark

Zare, Robert

Pasumansky, Mosha

Fachgebiete

• Mathematik | Informatik EDV | Informatik Programmierung | Softwareentwicklung Prozedurale Programmierung
• Mathematik | Informatik EDV | Informatik Programmierung | Softwareentwicklung Programmier- und Skriptsprachen
• Mathematik | Informatik EDV | Informatik Daten / Datenbanken Zeichen- und Zahlendarstellungen

Inhaltsverzeichnis

Readme.doc — definitions you need to know.- How MDX is used.- MDX queries.- MDX syntax.- MDX expressions.- Navigating the hierarchy.- Snapshot data analysis.- Moving averages.- Filters.- Setting the default member.- Member properties and dimension security.- Distinct Count.- Parent-Child dimensions.- Advanced data modeling — Custom Order, Custom Rollup, Custom Members.- Further advanced data modeling techniques.- Actions.- Server side color coding.- More about querying.