Oracle Database Installation and Configuration

Oracle Database Installation and Configuration

Overview: An Oracle database is a collection of data treated as a unit.

The purpose of a database is to store and retrieve related information.
A database server is the key to solving the problems of information management.

In general, a server reliably manages a large amount of data in a multiuser environment so that many users can concurrently access the same data. All this is accomplished while delivering high performance. A database server also prevents unauthorized access and provides efficient solutions for failure recovery.

Oracle Database is the first database designed for enterprise grid computing, the most flexible and cost effective way to manage information and applications.

The database has logical structures and physical structures. Because the physical and logical structures are separate, the physical storage of data can be managed without affecting the access to logical storage structures.

Overview of Physical Database Structures

The following s explains the physical database structures of an Oracle database, including datafiles, redo log files, and control files. 

Overview of Logical Database Structures

The logical storage structures, including data blocks, extents, and segments, enable Oracle to have fine-grained control of disk space use.