June 2004
Intermediate to advanced
396 pages
9h 28m
English
book
Building and Scaling SAP Business Information Warehouse on DB2 UDB ESE
by Chuck Ballard, Andreas Christian, Theodor H. Kuebler, Rodrigo A. Schiavon
Content preview from Building and Scaling SAP Business Information Warehouse on DB2 UDB ESE
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30 SAP BW and DB2
Figure 2-6 Foreign-key relationships
SAP BW provides the option to define a very large dimension as a line item
dimension
. In this case, the corresponding dimension is not stored as a separate
table, but rather it is stored directly in the fact table. This eliminates the
necessary join operation between dimension and fact table during SAP BW
query processing, which can provide improved query performance.
2.6 Dataload into InfoCube
When data is loaded from PSA or ODS into an InfoCube, it must be transformed
from a flat table structure into the extended star schema. Figure 2-7 shows the
steps that are required to transfer a new ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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