what is Oracle
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.
Oracle Database may be a electronic database management system. it’s called Oracle information, OracleDB or just Oracle. it’s created and marketed by Oracle Corporation.
Oracle database is that the first information designed for enterprise grid computing. The enterprise grid computing provides the foremost versatile and price effective thanks to manage data and applications.
1979: offers the first commercial SQL RDBMS
1983: offers a VAX-mode database
1984: offers the first database with read-consistency
1986: offers a client-server DBMS
1987: introduces UNIX-based Oracle applications
1988: introduces PL/SQL
1992: offers full applications implementation methodology
1995: offers the first 64-bit RDBMS
1996: moves towards an open standards-based, web-enabled architecture
1999: offers its first DBMS with XML support
2001: becomes the first to complete 3 terabyte TPC-H world record
2002: offers the first database to pass 15 industry standard security evaluations
2003: introduces what it calls “Enterprise Grid Computing” with Oracle10g
2005: releases its first free database, Oracle Database 10g Express Edition (XE)
2008: Smart scans in software improve query-response in HP Oracle Database Machine / Exadata storage
2013: begins use of Oracle 12c which is capable of providing cloud services with Oracle Database
Oracle Database Editions
- Enterprise Edition (EE): Oracle Corporation’s flagship info product. a completely featured edition of Oracle info, it conjointly permits purchase of add-on options within the kind of info choices and Management packs and imposes no limitation on server resources offered to the info.
- Standard Edition (SE): meant for small- to medium-sized implementations, this edition comes with Real Application Clusters choice enclosed, a reduced set of info options, and also the licensing restriction to run on servers or clusters with a most of two sockets total and capped to use a most of sixteen synchronic user threads. Oracle positions SE2 as a starter edition, stressing complete upward compatibility and easy upgrade to the a lot of expensive Enterprise Edition.
- Personal Edition (PE): A single-user, single-machine development and readying license, permits use of all information options and extra-cost information choices (with the exception of the Oracle RAC option). it’s offered for purchase for Windows and UNIX operating system platforms solely and doesn’t embody management packs.