Enabling SQL Tracing and Using TKPROF

Tracing your session can be a very effective way to debug an application. From a database perspective, each page request is a single database session. If you enable SQL tracing, then Oracle Application Express creates a temporary file you can then analyze using the TKPROF utility.

You enable SQL tracing in Oracle Application Express by using f?p syntax to set the argument p_trace=YES. For example, to trace the display of page 1 in application 100, you would use the syntax:

http:/.../f?p=100:1&p_trace=YES

To use the TKPROF utility:

Navigate to the directory in which the trace file is created.
Enter the following to view instructions about using TKPROF utility:
```
tkprof help=yes
```