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 







sec_case_sensitive_logon tips 

Oracle Database Tips by Donald BurlesonFebruary 13, 2015

Note:  The sec_case_insensitive_login has been deprecated in Oracle 12c.  The default value in 12c and beyond is sec_case_sensitive_login=true.

Question:  I want to know hot to enable case sensitive passwords in Oracle.  Is this done with the sec_case_sensitive_logon init.ora parameter?

Answer:  Yes, the sec_case_sensitive_logon parameter will allow case sensitive passwords when the value is set to sec_case_sensitive_logon=true in your pfile or spfile (init.ora).

The sec_case_sensitive_logon can be changed dynamically in Oracle with the alter system command::

SQL> show parameter sec_case_sensitive_logon

NAME                                 TYPE        VALUE
------------------------------------ ----------- -----------------
sec_case_sensitive_logon             boolean     TRUE

SQL> alter system set sec_case_sensitive_logon=false

System altered.

SQL> show parameter sec_case_sensitive_logon

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------
sec_case_sensitive_logon             boolean     FALSE

For password mismatch issues ORA-16191 in primary/standby databases (Data Guard) you need to set sec_case_sensitive_logon=false and:

1:  Create password files on both servers using the same password and pass ignorecase=Y to the orapwd utility.

2:  Make sure you use identical options during password file creation for both primary and standby.

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