11g

11g is a designation that commonly refers to Oracle Database 11g. The "g" in 11g stands for "grid," reflecting Oracle's emphasis on grid computing and its ability to run applications across multiple servers. Oracle Database 11g was released in multiple editions, including Standard Edition, Enterprise Edition, and Personal Edition, each with varying features and licensing.

Key enhancements introduced in Oracle Database 11g included improvements in performance, manageability, and availability. Features like Automatic Workload Repository (AWR) and Automatic Database Diagnostic Monitor (ADDM) provided more sophisticated tools for performance tuning and problem diagnosis. Data compression, online<bos> operations, and enhanced flashback technologies aimed to improve data availability and reduce downtime. Security enhancements were also a focus, with new features for data encryption and auditing.

Oracle Database 11g offered advanced functionalities for data warehousing, business intelligence, and high-availability solutions like Real Application Clusters (RAC). It supported various operating systems, including Linux, Windows, and Unix variants. While its support has ended for certain versions, it remains a significant release in the history of Oracle Database, paving the way for subsequent versions with further advancements in database technology.