Oracle 12c Pluggable Database (PDB) – FAQ

Let’s continue my series of articles on Oracle 12c Pluggable Database feature including SQL code.  I strongly recommend first reading my previous articles on this topic to understand the rest of the material:
Oracle 12c Pluggable Database is a fundamental architectural change
Oracle 12c Pluggable Database feature insights
Oracle 12c Pluggable Database (PDB) feature hands-on experience
Oracle 12c Pluggable Database – Plug Unplug and Clone

Oracle 12c Pluggable Database Point-In-Time recovery

Oracle 12c Pluggable Database Point-In-Time recovery

There are several questions on Oracle 12c Pluggable Database feature came up on my presentation at the German Oracle User Group (DOAG) regional meeting and from other users. Some of them I’ll clarify in this article. Read more »

Oracle 12c Pluggable Database – Plug Unplug and Clone

My presentation of Oracle 12c Pluggable Database feature at DOAG

My presentation of Oracle 12c Pluggable Database feature at DOAG

Last week I gave a presentation called “12c Pluggable Database Feature Insights”at the German Oracle User Group (DOAG) regional meeting in Nuremberg. Not only the presentation itself but also a later discussion was very interesting and valuable. I encourage my nearby German colleagues joining DOAG and visiting regular Regional DOAG meetings in Nuremberg.

Let’s continue my series of articles on Oracle 12c Pluggable Database feature including SQL code.  I strongly recommend first reading my previous articles on this topic to understand the rest of the material:
Oracle 12c Pluggable Database is a fundamental architectural change
Oracle 12c Pluggable Database feature insights
Oracle 12c Pluggable Database (PDB) feature hands-on experience

This time I’ll show how to plug a Pluggable Database (PDB) into another Container Database (CDB), how to clone PDBs and how to adopt non-CDB as a PDB into a pre-existing CDB. To start with, I will use a Pluggable Database MY_PDB which I unplugged in my previous article and will plug it into another Oracle 12c Container database called cdb2. Read more »

Oracle 12c Pluggable Database (PDB) feature hands-on experience

I strongly recommend first reading my previous articles on this topic to understand the rest of the material:
Oracle 12c Pluggable Database is a fundamental architectural change
Oracle 12c Pluggable Database feature insights

As I wrote previously Pluggable Databases is a brand-new capability in Oracle Database 12c that will be released soon. In this article I continue giving more practical insights of an Oracle 12c Pluggable Database future including SQL statement examples. The SQL code I mention below is applicable to Oracle database 12.1 Beta2.

Let’s repeat the step of connecting to a Container database (CDB) called cdb1 from my last article.

sqlplus sys/pass@localhost:1521/cdb1 as sysdba
Read more »

Oracle 12c Pluggable Database feature insights

I’m excited about a new version of Oracle database 12c that will be released soon. In the last article I wrote about a considerable architectural change that Oracle is going to introduce with help of Oracle 12c Pluggable database feature. Let’s continue and explore some details of Oracle 12c Pluggable database feature.

Bear in mind that conventional database mode will be still available in 12c database. That means you will have two options of creating a usual old-fashioned Oracle database (non-CDB) or creating a Container Database (CDB) that will hold all your Pluggable Databases (PDB) that you will create or plug later. See below more details.

12c Pluggable Database details

– Each PDB has its own private data dictionary for customer-created database objects; CDB on the other hand as a whole has the data dictionary for the Oracle-supplied system each data dictionary defines its own namespace. In other words, there is global Data dictionary (CDB level) and local one (PDB level).

– There is a new split data dictionary architecture that allows a PDB to be quickly unplugged from one CDB and plugged into a different CDB

– Each PDB sees a read-only definition of the Oracle-supplied system

Read more »

Oracle 12c Pluggable Database is a fundamental architectural change

Oracle 12c Pluggable Database Architecture

Oracle 12c Pluggable Database Architecture

With a new Oracle 12c database release Oracle is going to come up in 2013 with a fundamentally new architecture called Pluggable Database that will greatly help enterprises in data and database consolidation as well in building a foundation for Private Database Clouds. Traditionally Oracle had several databases for several applications. Oracle 12c database will enhance its consolidation ability and will allow multiple customers data to coexist in a single database. Since 12c will be released pretty soon, I’d like to share some details on 12c Pluggable Database feature. Read more »

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