Where can I get old versions of oracle database and patches for them?

Question

Oracle

Specifically, 11gR2_database is needed for windows.

Answer 1

https://www.oracle.com/database/technologies/oracl...

Previous Database Release Software
Oracle Database 10.2, 11.x, 12.x, and 18c are available as a media or FTP request for those customers who own a valid Oracle Database product license for any edition. To request access to these releases, follow the instructions in Oracle Support Document 1071023.1 (Requesting Phys... from My Oracle Support.

or on torrent

Answer 2

The latest version of 11gR2 is 11.2.0.4.0 (Patchset 13390677) and can be downloaded from here (My Oracle Support account required)