The new 21 is already here for Oracle Autonomous.

You’ve probably already seen in the news that the Oracle 21c is available and saw some tweets and blogs about the new release. But did you know that not only DBCS with “normal” cloud databases available but also the Autonomous version?

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Cucumbers, coffee and chocolate or how to create non-cdb on Exadata Cloud at Customer.

For those who are puzzled by the title here is a short explanation. I didn’t pay too much attention to what I had in my fridge and one day I found only a couple of cucumbers, chocolate and some coffee. That was not too bad but I couldn’t call it a proper nutrition diet. It was at the same time when I was exploring a possibility to have a non-cdb 12.1 Oracle database on an Exadata Cloud at Customer (ExaCC). One might think the blog is about comparing the unusual diet with the non-cdb deployment on a cloud environment telling that you should not really use non-cdb as you probably shouldn’t eat only cucumbers, chocolate and coffee. But it is not true, the blog is how to create such non-cdb on an ExaCC.

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Oracle multi-tenant: PDB scope parameters and where you can see them.

Working with Oracle multi-tenant architecture gives us some obvious benefits but also some challenges. What if we want to change a system parameter but only for a certain pluggable database (PDB) and keep it default for all others? Starting from 12.1 Oracle provides the ability to modify parameters on PDB level. If you look to a reference documentation for database parameters it states clearly whether it can be applied on CDB level or not. And with every new release we have more and more parameters which can be changed on PDB level. It has grown from 185 for 12.1.0.2 to 194 on 19.7.0.0.

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