Differences between PSUs and traditional CPU patches

Hi, this is Eric Maurice, Director Oracle Software Security Assurance. In the past, I have been getting a number of questions about the differences between the Patch Set Updates (PSUs) and traditional Critical Patch Update (CPU) patches.
On August 11th at 11:00AM Pacific / 2:00PM Eastern, the Independent Oracle User Group (IOUG) will host a webcast on Database Server security patching featuring two speakers from Oracle: Bruce Lowenthal, Director for Security Alerts, and Lois Price, Director for Product Lifecycle Services.
The purpose of this technical webcast is to discuss the various aspects of the Critical Patch Update (CPU) program, which are specific to Oracle Database Server. The speakers will spend a significant portion of the webcast discussing the differences between the Patch Set Update (PSU) and traditional CPU patches. An overview of the CPU program will also be provided, and ample time will be set aside for a Q&A session at the end of the presentation.
The URL to register to this webcast is https://www1.gotomeeting.com/register/141106952
For more information:
Patch Set Updates for Oracle Products [ My Oracle Support Note 854428.1] is located at https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&id=854428.1 (My Oracle Support subscription is required)
The Critical Patch Updates and Security Alerts page is located at http://www.oracle.com/technology/deploy/security/alerts.htm
Edited by: Eric P. Maurice on Jul 27, 2010 3:21 PM
Edited by: Eric P. Maurice on Jul 27, 2010 3:22 PM

Update:
Due to technical difficulties, the Database Security Patching webcast, initially scheduled for August 11, 2010 at 1pm CDT has been rescheduled. The new webcast will take place on Wednesday, August 18 at 1pm Central.
You can register again for this event at https://www1.gotomeeting.com/register/729035104

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    In the some versions (it depends on patch level) UPLOAD can call WS_UPLOAD (or GUI_UPLOAD).
    Last but not the least, 'upload' internally calls 'ws_upload', that's the difference.
    Hope this would be helpful.
    regards,
    Varun.

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