Running SQL Developer on High DPI Screens

After five years, it was time for a new Laptop. My new Laptop has a high resolution screen with a resolution of 3840 x 2160. One of the first actions was to download SQL Developer 18.2. Then a surprise, the window and font size of SQL Developer was very low and hard to read and use. This short blog post will show you a way to get back the “old size” on Windows 10.

Continue reading »

Instance crashed with ORA-01092 Error

While I was checking a customer environment, I saw that the Repository Database of an Enterprise Manager Cloud Control installation was down. Due to the alert log, there was a hung of processes in the night and the instance was killed by the PMON. Every subsequent startup of the database failed with anĀ ORA-01092 error. In this blog post, I will demonstrate how to analyze a memory issue which can lead to an ORA-01092 error.

Continue reading »

Create Golden Image of your current Grid Infrastructure 12.2 installation

Starting with the release of Grid Infrastructure 12c Release 2, Oracle changed the installation process. Instead of unzipping the downloaded zip files to a staging area, you unzip them to your target Oracle Home location. Afterwards you run the configuration script gridSetup.sh. This new installer has a lot of improvements like patching the installer itself or installing patchset updates or bundle patches before the actual configuration of the Grid Infrastructure starts. I want to demonstrate one of these new features – the creation of a Gold Image of an existing Grid Infrastructure installation.

Continue reading »