Oracle: Performing Actions for the Cost-Based Optimizer

Use

The following text only describes those actions that you need to perform for the cost-based optimizer (CBO) directly after the update. For more information about this topic, see the following documents in the online documentation:

Note

As of SAP NetWeaver Application Server 6.40, SAP no longer delivers SAPDBA. To help you administer your Oracle database, SAP now provides you with the BR*Tools. The tools can be used for all SAP Releases running on Oracle 9i and higher.
For more information about the BR*Tools, see the SAP library under

Procedure

Scheduling Periodic Statistics Updates

Make sure that the statistics are updated at regular intervals. Update the statistics once manually directly after the update, then schedule this update periodically (every Saturday or Sunday night, for example).

brconnect -u / -c -f stats -t all

You can schedule these actions with transaction DB13. For more information about transaction DB13, choose Start of the navigation path Help Next navigation step Application help End of the navigation path , when your are in the transaction in the SAP system..