Wrong Result

Important Recommended Patches for Oracle Database 19c

Posted on February 23, 2021 by Patch Recommendation 18

It took a while – but now you can find a new MyOracle Support (MOS) Note with a list of Important Recommended Patches for Oracle Database 19c. It is actually a must-read, regardless whether you are upgrading or migration to 19c, or in case you are already on 19c.

What do you get?

Please check MOS Note: 2720807.1 – Oracle Database 19c Important Recommended One-off Patches. It gives you a list of important fixes for Oracle Database 19c. In the initial version of the note you could select for each available Release …

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Is it always the Optimizer? Should you disable Group By Elimination in 12c?

Posted on February 13, 2015 by Flaws and Pitfalls Optimizer Oracle Database 12c Parameters 3

I wouldn’t say it’s always the optimizer – but sometimes one or two tiny little things are broken making it necessary to turn off new functionality for a while.

Please don’t misinterpret this posting!
As far as I see (and I really do work with customers!) I’d state the Oracle Database 12.1.0.2 Optimizer is more stable, faster and predictable compared to 11.2.0.x. Our Optimizer Architects and Developers have done a great job. But with all the complexity involved sometimes it takes a few fixes or incarnations until a great new feature really matures. The Group-By-Elimination feature in Oracle Database …

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

Opinions certainly are my own as is this page.

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