By Franck Pachot . In a previous post I explained how the AWR views have changed between 12.1.0.1 and 12.1.0.2 and now in 12.2.0.1 they have changed again. This is a good illustration of multitenant object link usage.
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By Franck Pachot . In a previous post I explained how to use transportable tablespace from a standby database. Here I’m showing an alternative where you can transport from a backup instead of a standby database. RMAN can do that since 10gR2.
By Franck Pachot . Here it is. The multitenant book is out for sale…
By Franck Pachot . Today at UKOUG TECH16 conference I’m presenting the internals of the new multitenant architecture: 12c Multitenant: Not a Revolution, Just an Evolution. My goal is to show how it works, that metadata links and object links are not blind magic. Here are the links to the blog posts I’ve published about multitenant internals.
By Franck Pachot . Oracle Transparent Data Encryption is available without option on the Oracle Public Cloud: Standard Edition as well as Enterprise Edition (EE, EE-HP EE-EP, ECS). More than that, the DBaaS enforces TDE for any user tablespace even when not specifying in the CREATE TABLESPACE. It you are not familiar with TDE key management (wallets) then you have probably encountered ORA-28374: typed master key not found in wallet. Rather than another tutorial on…
By Franck Pachot . Upgrading from 12.1 to 12.2 is easy in Oracle Public Cloud DBaaS because you are in multitenant. Here is how to clone a 12.1 PDB to 12.2 service.
By Franck Pachot . Easier than unplug/plug, you can move pluggable databases with remote cloning. It’s the same idea but you don’t have to manage the files yourself: the are shipped through database link. However, this uses the ‘remote file protocol’ and it fails with version mismatch: ORA-17628: Oracle error 17630 returned by remote Oracle server ORA-17630: Mismatch in the remote file protocol version client server
By Franck Pachot . In the previous post I described how simple it is to unplug a PDB and plug it into a newer version CDB. One goal of dictionary separation in the multitenant architecture is to keep system objects on CDB$ROOT only. Knowing that an upgrade does not touch the application metadata and data, does this make PDB upgrade fast as a simple refresh of metadata links?
By Franck Pachot . 12.2 is available in the Oracle Public Cloud DBaaS. If you have a 12.1 DBaaS service, there’s no button to upgrade it. I’ll describe all the possible upgrade procedures and the first one, and the most simple, is to create a new DBaaS service in 12.2 and unplug/plug the PDBs to it.