2024: Domino Containers - The Next Step. News from the Domino Container commu...
SAP World Tour 2010: Impact of Column-Oriented Main-Memory Databases on Enterprise Applications
1. Impact of Column-OrientedMain-Memory Databases on Enterprise Applications Dr. Alexander Zeier, Matthieu-P. Schapranow, Christian Tinnefeld Hasso Plattner Institute March 02, 2010
ccdcdMoore’s Law: “…number of transistors … doubling approximately every two years”CPU frequency hit limitin 2002, but Mooreslaw holds todayHow? Multi-Core and Parallelization
Select required attributes only
X: number of aggregatesY: log. time required for aggregate calculation
ordered/few: tarif ratesUnordered/few: sexOrdered/Distinct: temperature values
Partitioning!
Remove data redundancy
Partioning!
Insert-Only
Stress on:Materialized aggregatesMaterialized viewsIndicesRedudant data in cubes, change history, …
Analysis of accounting tablesBkpf= accounting document headersBseg = accounting document line items
VieleSELECTs: bspw. Dunning ablauf (mituntersehr complex) row-oriented, relational programming pattern select via attributes (column-wise) cp. to OLAP needs a rewrite!!!
What about rescheduling for high-prio customer now: manual rescheduling necessary dank main-memory jedes mal neuberechnenmöglich rescheduling on-demand ATP combining with pricing, e.g. customer demands for a certain price per product you can name shipping date (cupper, metals, oil, etc.)
Aggregates narrow your flexibility interactive planning