Christian Gohmann | DBA Blog
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Christian Gohmann with the help of his blog gives insights on various database and technologies such as Oracle, cloud, MySQL, Linux and more. Christian Gohmann is currently working as Principal Consultant and Instructor at Trivadis AG and focuses in helping customers in the areas of architecture planning, implementation and migration.
Christian Gohmann | DBA Blog
8M ago
In this blog post, I will show different ways to drop a private database link of a different schema without connecting to this schema ..read more
Christian Gohmann | DBA Blog
1y ago
In the context of an ExaCC Gen2 environment, the command-line utility ExaCLI can be used to monitor and manage (only a subset of commands are allowed) the Exadata Storage Server (with 18.1.4.2 and higher). For example, you can check the software version of the Dom0 layer. In this blog post, I will describe all the required steps to get ExaCLI running ..read more
Christian Gohmann | DBA Blog
1y ago
This blog post describes an issue with patchmgr while checking the SSH equivalency of the target cluster nodes. More details about patchmgr and how to use it to patch your VM clusters can be found here ..read more
Christian Gohmann | DBA Blog
1y ago
Since the end of January, Oracle Linux 7.9 is officially available as Linux Distribution for the Windows Subsystem for Linux (WSL). This blog post will demonstrate how to install and use it ..read more
Christian Gohmann | DBA Blog
1y ago
In this blog post, I will demonstrate how to use the command-line utility DB Server Patch Utility (patchmgr) to update the Exadata software of DomU environments to a newer version ..read more
Christian Gohmann | DBA Blog
1y ago
Since the end of January, Oracle Linux 7.9 is officially available as Linux Distribution for the Windows Subsystem for Linux (WSL). This blog post will demonstrate how to install and use it ..read more
Christian Gohmann | DBA Blog
1y ago
In the context of an ExaCC Gen2 environment, the command-line utility ExaCLI can be used to monitor and manage (only a subset of commands are allowed) the Exadata Storage Server (with 18.1.4.2 and higher). For example, you can check the software version of the Dom0 layer. In this blog post, I will describe all the required steps to get ExaCLI running ..read more
Christian Gohmann | DBA Blog
1y ago
Today I stumbled about a very strange error while applying a release update to a 19c database. Datapatch fails with an ORA-27476 error. In this blog post, I want to show how to get rid of this error and how to identify objects in the database which may cause it ..read more
Christian Gohmann | DBA Blog
1y ago
In this blog post, I will demonstrate how to use the command-line utility DB Server Patch Utility (patchmgr) to update the Exadata software of DomU environments to a newer version ..read more
Christian Gohmann | DBA Blog
1y ago
This is the first part of a blog series where I will demonstrate how to create a new VM Cluster in an Exadata Cloud@Clustomer environment using the OCI command-line interface. In the first part, I will create the required VM Cluster Network ..read more