The latest version of oracle isOracle 11g download,
Share "Oracle 11g" (not 11i), "Oracle 10g", and "Oracle 9i ".
All versions of Oracle are free to download, and each software comes with a development license.
Oracle 11g:
Oracle Database 11g Release 1 (11.1.0.6.0) download
Http://www.oracle.com/technology/software/products/database/index.html
Document: http://www.oracle.com/technology/global/cn/documentation/index.html
Oracle 10g
Http://www.oracle.com/technology/global/cn/software/products/database/oracle10g/index.html
Including Oracle 10g Database Enterprise/Standard Edition, Oracle 10g Database 2nd, Oracle 10g Database 1st
Oracle download-Oracle 9i download
Download the Oracle9i database, including Oracle9i Release 2 (9.2.0.2) and Oracle9i Release 2 (9.2.0.1)
Http://www.oracle.com/technology/global/cn/software/products/oracle9i/index.html
Download Oracle 9i for Windows
Oracle 9i 3CD Download:
Http://download.oracle.com/otn/nt/oracle9i/9201/92010NT_Disk1.zip
Http://download.oracle.com/otn/nt/oracle9i/9201/92010NT_Disk2.zip
Http://download.oracle.com/otn/nt/oracle9i/9201/92010NT_Disk3.zip