high degree of performance, reliability, and
An Oracle 11g database is made up of the
- the Oracle software
- the database itself
(the physical files on disk)
- the Oracle
instance which comprises the memory structure and
the background and server processes
- Oracle Net - the software layer enabling client
applications and the database to communicate over a network as well as
the Oracle Net listener,
which listens for connection requests from the network.
Oracle 11g is
available in 3 editions to meet the varying
requirements of different organizations.
- Oracle Database 11g Standard Edition One is
designed for workgroup, departmental, and web applications and runs on
a single server with a maximum of 2 sockets
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- Oracle Database 11g Standard Edition is
available on single or clustered servers with a maximum capacity of
four sockets in total and includes Oracle Real Application Clusters at
no extra cost
- Oracle Database 11g Enterprise Edition is
available on single and clustered servers with no socket limitation.
This is designed for mission-critical transactional applications,
query-intensive data warehouses, and mixed workloads.
Follow this link for an overview of Oracle 11g new features
Learn how to install and configure Oracle 11g in a virtual Linux environment
See this link for a better understanding of the Oracle instance architecture
and this link for an overvew of the Oracle database