(Application tuning is a very important area for database administrators and application developers, who spend a lot of time performing this very important function. Unadjusted business applications may affect not only many users, but also the entire business operation. Therefore, the company invests a lot of resources to ensure the smooth operation of business critical applications. The Oracle Performance Tuning pack (part of the Oracle Database 11g product set) provides a cost-effective and easy-to-use solution that automates the entire application tuning process. The seamlessly integrated SQL advisor feature in enterprise manager enhances SQL performance and provides a comprehensive solution for complex, time-consuming application automation tuning tasks.)