Founded in August 1977 by Larry Ellison, Bob Miner, Ed Oates and Bruce Scott, Oracle was initially named after "Project Oracle" a project for one of their clients, the C.I.A, and the company that developed Oracle was dubbed "Systems Development Labs", or SDL. Although they may not have realized it at the time, these four men would change the history of database management forever.
In 1978 SDL was renamed Relational Software Inc (RSI) to market their new database.
Releases and versions
Oracle products follow a custom release-numbering and -naming convention. The "c" in the current release, Oracle Database 19c, stands for "Cloud". Previous releases (e.g. Oracle Database 10g and Oracle9i Database) have used suffixes of "g" and "i" which stand for "Grid" and "Internet" respectively. Prior to the release of Oracle8i Database, no suffixes featured in Oracle Database naming conventions. Note that there was no v1 of Oracle Database, as co-founder Larry Ellison "knew no one would want to buy version 1".Oracle's RDBMS release numbering has used the following codes:
Different Versions Of Oracle:
- In 1977, SEL (Software Development Laboratory) … V1
- In 1979, RSI (Relational S/W Incorporation) …. V2
- In 1983, Oracle Corporation à Oracle 3 [Developed Using ‘C’, which supports simple queries but does not support transactions]
- In 1984, Oracle 4 Supports Transactions [Commit/Rollback]
- In 1985, Oracle 5 Client-Server Architecture [Only install DB in Server, so that ‘N’ no of Clients can connect is known as Client-Server Architecture].
- In 1989, Oracle 6 PL/SQL
- In 1992, Oracle 7 Supports DWH [OLAP-Online Analytical Processing]
- In 1997, Oracle 8 ORDMBS
- In 1999, Oracle 8i ‘I’ means Internet & it has inbuilt JVM (JAVA Virtual Machine)
- In 2001, Oracle 9i with 400 New features, e.g. XML (X tended Markup Language), RAC (Real Application Clusters) etc which provided high availability & performance.
- In 2003, Oracle 10g ‘g’ means grid (group of DB Servers)
- In 2006, Oracle 11g we can add columns with values etc.
- In July 2014 Oracle 12 C is launched which means oracle with Cloud.
- In Feb 2018 Oracle 18 C is launched which is worlds first autonomous database
- February 2019 2018 Oracle 18 C is launched where main features are Active Data Guard DML Redirection, Automatic Index Creation, Real-Time Statistics Maintenance, SQL Queries on Object Stores, In-Memory for IoT Data Streams, and many more.
Editions of Oracle database:
Following are the four editions of the Oracle database.
- Enterprise Edition: It is the most robust and secure edition. It offers all features, including superior performance and security.
- Standard Edition: It provides the base functionality for users that do not require Enterprise Edition's robust package.
- Express Edition (XE): It is the lightweight, free and limited Windows and Linux edition.
- Oracle Lite: It is designed for mobile devices.
