Part 1 - SD Overview
Part 2 - Database Update Logic
Part 3 - Extractor Logic
Part 4 - Update Methods
Part 5 - Datasource Overview
Part 6 - Implementation Methodology
Part 7 - Enhancements
Part 8 - Support Issues
Thursday, December 30, 2010
Thursday, October 21, 2010
Monday, August 2, 2010
Disk Space for Infocube and ODS
A simplified estimation of disk space for the BW can be obtained by using the following formula:
For each cube:
Size in bytes = (n + 3) x 10 bytes + (m x 17 bytes) * [ rows of initial load + rows of periodic load * no. of periods]
n = number of customer created dimensions, m = number of key figures
For each ODS (incl. change log):
Size in bytes = (n x 10 bytes) + (m x 17 bytes) * [ rows of initial load + rows of periodic load * no. of periods]
n = number of character fields, m = number of numeric fields
For each cube:
Size in bytes = (n + 3) x 10 bytes + (m x 17 bytes) * [ rows of initial load + rows of periodic load * no. of periods]
n = number of customer created dimensions, m = number of key figures
For each ODS (incl. change log):
Size in bytes = (n x 10 bytes) + (m x 17 bytes) * [ rows of initial load + rows of periodic load * no. of periods]
n = number of character fields, m = number of numeric fields
Thursday, July 15, 2010
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