19. The system of claim 18 , wherein the operation further comprises: for each application program, analyzing the performance summaries for the query statements issued by the identified application program to identify one or more query statements issued by the application program.
19. The system of claim 18 , wherein the operation further comprises: for each application program, analyzing the performance summaries for the query statements issued by the identified application program to identify one or more query statements issued by the application program. 20. The system of claim 19 , wherein the operation further comprises: analyzing the identified application programs and the query statements to improve their performance.