12.4. SQL Application Tuning
After you've created the optimal tables, indexes, and other database objects, the next step in your quest to improve the performance of the database is to review the users' SQL commands. You can use some of Oracle's GUI-based and web-based tools, such as Top SQL and Explain Plan, to identify and analyze the SQL commands that are not only frequently executed but also use the most resources. Also, you can help the Oracle optimizer do its job of deciding the best way to run a specific query.
12.4.1. Top SQL Tool
The Top SQL tool can identify SQL statements that may be causing performance problems in the database, such as by using too much CPU or reading blocks from disk instead of from the cache. Even if the SQL command ...