Improve Data Access in SAP Environments with the Oracle Cost Based Optimizer (CBO)

  • by Martin Frauendorfer, Service Architect, Active Global Support, SAP AG
  • March 15, 2008
The Oracle Cost Based Optimizer (CBO) can be a powerful tool for determining the most efficient way to retrieve data from an Oracle database. The CBO identifies ways to improve data-access time by considering resource costs such as I/O, by accounting for statistical values and parameters, and by selecting appropriate indexes. Compared to the Rule Based Optimizer (RBO), the CBO is more sophisticated and complex, but it also has a few drawbacks.

Martin Frauendorfer

Martin Frauendorfer studied computer science at the University of Erlangen, Germany. He joined SAP Support in 1999 and has focused on Oracle-related problems since then. Today he works as a service architect in SAP Solution Operation Support. His main tasks involve supporting large, critical SAP customers who use Oracle databases. Key focus areas are Oracle performance tuning and Oracle administration.

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