Call now: 252-767-6166  
Oracle Training Oracle Support Development Oracle Apps

 E-mail Us
 Oracle Articles
New Oracle Articles

 Oracle Training
 Oracle Tips

 Oracle Forum
 Class Catalog

 Remote DBA
 Oracle Tuning
 Emergency 911
 RAC Support
 Apps Support
 Oracle Support

 SQL Tuning

 Oracle UNIX
 Oracle Linux
 Remote s
 Remote plans
 Application Server

 Oracle Forms
 Oracle Portal
 App Upgrades
 SQL Server
 Oracle Concepts
 Software Support

 Remote S


 Consulting Staff
 Consulting Prices
 Help Wanted!


 Oracle Posters
 Oracle Books

 Oracle Scripts

Don Burleson Blog 







last_call_et tips

Oracle Database Tips by Donald BurlesonJanuary 31, 2015

What does the v$session column last_call_et do?


Answer:  According to Oracle, the last_call_et column of v$session  "represents the elapsed time (in seconds) since the session has become active. . . .If the session status column is currently ACTIVE, then the value of last_call_et represents the elapsed time in seconds since the session has become active.  If the session status column is currently INACTIVE, then the value of last_call_et represents the elapsed time in seconds since the session has become inactive."

 In plain English, last_call_et will tell you how long a session has been running (in wall clock seconds), but this depends on the setting for the optimizer_mode parameter (as seen in the v$sql_plan view).  If it is optimizer_mode=all_rows (the default), the last_call_et will reflect the total elapsed time, while if you are using first_rows, the last_call_et will re-set for each change in status.  Here is a query using last_call_et:


   v$session ses,
   v$sql sql
   ses.sql_hash_value = sql.hash_value
   ses.type = 'USER';

If you are running a DML (insert, update, delete) last_call_et tells you how long an update has been running.

Of course, a session many issue many DML and SQL statements so care must be used when interpreting the last_call_et column.

Oracle Training from Don Burleson 

The best on site "Oracle training classes" are just a phone call away! You can get personalized Oracle training by Donald Burleson, right at your shop!

Oracle training



Burleson is the American Team

Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications.

Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  

and include the URL for the page.


Burleson Consulting

The Oracle of Database Support

Oracle Performance Tuning

Remote DBA Services


Copyright © 1996 -  2020

All rights reserved by Burleson

Oracle ® is the registered trademark of Oracle Corporation.



Oracle Training at Sea
oracle dba poster

Follow us on Twitter 
Oracle performance tuning software 
Oracle Linux poster