Download ArcSDE for Oracle11g 10.2.2 from our software library for free. The size of the latest setup package available for download is 1 MB. Our antivirus scan shows that this download is malware free. The actual developer of the free software is Environmental Systems Research Institute, Inc. ArcSDE for Oracle11g is included in Development Tools. The most popular versions of the ArcSDE for Oracle11g 10.2 and 10.1.
From the developer:
ArcSDE for Oracle 11g is an Oracle geodatabase object schema update and editing patch. It resolves a critical issue where users are unable to create new feature classes or modify their existing schema on Oracle geodatabases that have existed at 10.0 at some point: Oracle geodatabases that were upgraded from a previous release to ArcGIS 10.0, or Oracle geodatabases created with the ArcGIS 10.0 release.
You may want to check out more software, such as ArcSDE Permissions, ArcGIS ArcSDE for PostgreSQL or Oracle11gR2, which might be similar to ArcSDE for Oracle11g.