Monday, October 1, 2012

Oracle and Oracle Database

What is Oracle?
Oracle is a US based organization known for its Oracle database and ERP products. Oracle with more than 380,000 customers—including 100 of the Fortune 100—and with deployments across a wide variety of industries in more than 145 countries around the globe, Oracle offers an optimized and fully integrated stack of business hardware and software systems.
Oracle is associated with famous personality Larry Ellison. Larry" Ellison (born August 17, 1944) is an American business magnate, co-founder and chief executive of Oracle Corporation.

Oracle Customers:
Oracle has Customers in various Domains such as Banking, Automotive, Chemicals, Communications, Consumer Goods, etc.

Oracle Acquisitions:
Oracle has aggressive strategy in Acquisitions and is known for acquisitions of big and small companies around the world.Some of the famous acquistions are Sun, Peoplesoft, JDEdwards, iFlex, Logical Apps, Hyperion, etc.

Visit http://www.oracle.com/us/corporate/acquisitions/index.html for complete list

Oracle website:

www.oracle.com

What is Oracle Database?
Oracle Database is the first database designed for enterprise grid computing, the most flexible and cost effective way to manage information and applications. Enterprise grid computing creates large pools of industry-standard, modular storage and servers. With this architecture, each new system can be rapidly provisioned from the pool of components. There is no need for peak workloads, because capacity can be easily added or reallocated from the resource pools as needed.

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.

The Oracle RDBMS stores data logically in the form of tablespaces and physically in the form of data files ("datafiles").[6] Tablespaces can contain various types of memory segments, such as Data Segments, Index Segments, etc. Segments in turn comprise one or more extents. Extents comprise groups of contiguous data blocks. Data blocks form the basic units of data storage.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.

Oracle database versions:
Its latest versions are Oracle Database 10g and 11gR2, 11g R1



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