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## 24.4 About Monitoring Application and Page Resource Use

Query the `V$SESSION` and `V$SQLAREA` views to monitor application and page resource use..

APEX facilitates the monitoring of resources used by applications and pages by calling the package `DBMS_APPLICATION_INFO`. Whenever the APEX engine renders or processes a page, the module is set to `APEX` and includes the application ID and page number. Once set, you can query the `V$SESSION` and `V$SQLAREA` views to monitor transactions.

Parent topic: Debugging an Application