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ORA-12638 on Windows only from Oracle 19.10.0 onwards

Posted on March 10, 2021 by Behavior Change Flaws and Pitfalls Oracle Database 19c 56

You like unexpected changes and surprises, don’t you? And especially those which aren’t in the patch notes or the docs. I blogged about such changes a few weeks ago. And thanks to the people reading this blog, I learned now about another change with Oracle 19.10.0 on the Windows platform. You may receive now an ORA-12638 on Windows only from Oracle 19.10.0 onwards.

What has been changed?

So at first, thanks to Ernst and Marcus for bringing this to my attention. This is an issue which happens on MS Windows only.

When you …

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Windows Only: Upgrade to Oracle 18.10.0 fails with ORA-01722

Posted on July 8, 2020 by Flaws and Pitfalls Microsoft Windows 0

Liron Amitzi reported this on his blog a few days ago already. And it is a very nasty tiny little issue happening with RUs where the second number of the release enters the two-digit-space, such as 18.10.0. At this point, on Windows Only: Upgrade to Oracle 18.10.0 fails with ORA-01722. This happens late in the upgrade phase.

What is the issue?

The problem here is a tiny little piece in %ORACLE_HOME\admin\catupstr.sql – a SUBSTR function is used in a way that it does not take into account a potential two-digit …

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Mike Dietrich
Oracle Senior Director of Product Management for Database Upgrade, Migrations and Patching writing just another blog.

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