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 readingCategory: General
ORAchk execution on SLES 12 fails with RC-001
In this short blog post, I will demonstrate an issue with the current version 12.2.0.1.4 of the famous ORAchk tool running on SuSE Linux Enterprise Server 12.
Continue readingGenerate Healthcheck Reports in HTML with CVU 12.2
With the release of Oracle 12c Release 2, the Cluster Verification Utility (CVU) was included with an updated version. Beside new checks and enhanced functionality, the possibility of generating HTML reports was added. In this blog post I will show you how to generate such HTML reports.
Continue reading/etc/oratab entries are deleted after applying October 2017 Release Update
This short blog post will explain a change in the behaviour of how the /etc/oratab file is maintained by the oraagent.bin process in Oracle 12c Release 2 with an installed October 2017 Release Update.
Continue readingCreate 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 readingtfactl fails on Solaris while using df
This is just a short blog post about a problem using Oracle Tracefile Analyzers commandline utility tfactl on Solaris.
Continue readingUseful vi commands
Vi is a my preferred tool for editing files on Linux/Unix with a huge amount of possibilities. This blog post is a container for useful vi commands. Over the time the content will be extended by additional commands.
Continue readingResolve TNS alias using DBMS_TNS
This short blog post will demonstrate the usage of the new DBMS_TNS package, which was first introduced with the release of Oracle 12.2.0.1 and can be used to resolve a TNS alias to its full connect descriptor.
Continue readingGenerate CSV with SQL*Plus 12.2.0.1
From time to time it is required to get the rows of a table as comma separated values (CSV). With the release of Oracle 12.2.0.1, SQL*Plus has the ability to display the result of a query as CSV. This short blog post will demonstrate the usage of this new feature.
Continue readingGrid Infrastructure does not start after Kernel upgrade to 3.10.0-514.21.2
A lot of operating system vendors released recently an updated version of the Linux Kernel to fix an issue called Stack Clash (CVE-2017-1000364). But after applying the new Kernel version, the startup of the Grid Infrastructure fails.
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