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Oracle Team

Encryption in Oracle Public Cloud

By | Database Administration & Monitoring | 6 Comments

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…

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Oracle Team

12cR2: How long to upgrade a PDB?

By | Database Administration & Monitoring | No Comments

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?

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Oracle Team

12cR2 Single-Tenant: Multitenant Features for All Editions

By | Database Administration & Monitoring | No Comments

By Franck Pachot . Now that 12.2 is there, in the Oracle Public Cloud Service, I can share the slides of the presentation I made for Oracle Open World: 12cR2 Single-Tenant: Multitenant Features for All Editions from Franck Pachot I’ll give the same session in French, In Geneva on November 23rd at Oracle Switzerland. Ask me if you want an invitation.

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Oracle Team

Oracle 12cR2: MAX_PDBS

By | Database Administration & Monitoring | 5 Comments

By Franck Pachot . Oracle database 12.2 is there on the Database Cloud Service, in multitenant. In EE High Performance or Extreme Performance, you have the multitenant option: you can create 4096 pluggable database (instead of 252 in 12.1). If you are in lower services, you can create only one user PDB (not counting application root and proxy PDB). If you are in Standard Edition, it’s simple: it is a hard limit. If you are…

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Oracle Team

12cR2 multitenant containers in SQL_TRACE

By | Database Administration & Monitoring | No Comments

By Franck Pachot . In multitenant you session can switch between containers. For example, since 12.1, a common user can switch explicitly between CDB$ROOT and any PDB with the ‘ALTER SYSTEM SET CONTAINER’. Any user connected to a PDB will also have it session switching implicitely when querying through metadata links and data links (new name for object links). In 12.1 there are no ways to trace this. This is fixed in 12.2

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