a GNS fairytale

I don’t really understand the purpose of GNS and how to configure it. If I understand this article good I need to have let’s say 3 PCs. On the dns.example.com I create my DNS configuration as for a standard cluster. and in the resolv.conf and after I have setup this it should be possible to…

Recovering a PDB

I have to continue my DBA journey even though I don’t have the possibility to use multitenant. (I wanted a RAC, now I have a RAC, now I need an Exadata, Multitenant, a private cloud, maybe goldengate and an environment where I can use storage snapshots for cloning. ) Well, no job is in this…

Discovering new features

Reading the documentation from the beginning to the end is always hard work. Mostly you already know these things, but Oracle adds always something new. Well I started today with the Database Administrator’s Guide and voila: – you can put the database into a quiet state, all transactions will become blocked.