Oracle 12c

Talking about Cloud means talking about consolidation.
This process started with Oracle release 11g   virtualization that  allowed to share  servers and their resources.
When the company will shift their mind from a traditional management  concept  to the Cloud, Oracle 12c with the new multitenant architecture will supply this requirement based on  reliability and scalability.
The multitenant architecture simplifies  consolidation process in the Cloud.
Starting from Oracle 12c it is possible to manage many  databases  as one, without any change in the application management.
Perform an upgrade or database patching has the advantage of being able to be made one for all database managed, rather than applying each patch on every databases.
Backup and the disaster recovery are made once for all databases and, in case of necessity,  recovery is selective for single database.
Improved compression algorithm improves Storage management and space saving, with less space requirement.
In distribution Oracle 12c security is very important: the access to the data in a table can be limited by masking the data in real time.
The disaster recovery Oracle  (Data Guard) through the function  “ FAR SYNC” has remedied the problem of data synchronization by sending them to another database.
The synchronization -with previous release- had often impacts on the primary database in function of the distance of the secondary database. FAR SYNC  is a type of instance  that need one standby log space. Transaction log is written to the primary log and the standby log and then transferred  in async mode to the standby database.
Oracle Exadata database machine based on Engineered systems is optimized for simplification, availability,
Security, TCO and support.
Other 500 new functionality are present in this Oracle 12c that required a work about 5 years