Apparatus, methods, and computer code for monitoring a database and for detecting execution plan changes in the database. In the event that an execution plan is detected for a given database statement during the course of the monitoring, an alert signal may be generated. Optionally, the generation of...http://www.google.de/patents/US7634459?utm_source=gb-gplus-sharePatent US7634459 - Apparatus, method and computer-code for detecting changes in database-statement execution paths
