A program that works out the best access path for queries on database data.
The cost-based optimizer is part of the database management system. Its function is to reduce the time required to access database data, thereby reducing cost. The update statistics function, which can be performed from the Computing Center Management System in the SAP System,makes sure that the statistics required by the optimizer are up-to-date. Without up-to-date statistics, the access path generated by the optimizer may not be the best available.
SAP przykład użycia COST-BASED-OPTIMIZER pomoc. Jak działa cost-based-optimizer kod programu ABAP. Wykorzystanie kodu Cost-Based-Optimizer w programie funtion module SE37. Obsługa funkcji cost-based-optimizer
w klasie.
Słownik i definicje SAPa na C.