不多说，直接上干货！
方便自己，也方便他人查阅。
Oracle 11g的官网下载地址:
http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html 【推荐】【可以查看到各个版本】【都是企业版的】
ORACLE10 GR1：
Oracle Database 11g Release 2 (11.2.0.1.0) for Microsoft Windows (64-bit)
http://download.oracle.com/otn/nt/oracle11g/112010/win64_11gR2_database_1of2.zip
http://download.oracle.com/otn/nt/oracle11g/112010/win64_11gR2_database_2of2.zip
http://download.oracle.com/otn/nt/oracle11g/112010/win64_11gR2_client.zip
http://download.oracle.com/otn/nt/oracle11g/112010/win64_11gR2_grid.zip
Oracle Database 11g Release 2 (11.2.0.1.0) for Microsoft Windows (32-bit)
http://download.oracle.com/otn/nt/oracle11g/112010/win32_11gR2_database_1of2.zip
http://download.oracle.com/otn/nt/oracle11g/112010/win32_11gR2_database_2of2.zip
http://download.oracle.com/otn/nt/oracle11g/112010/win32_11gR2_client.zip
Oracle Database 11g Release 2 (11.2.0.1.0) for Linux x86
http://download.oracle.com/otn/linux/oracle11g/R2/linux_11gR2_database_1of2.zip
http://download.oracle.com/otn/linux/oracle11g/R2/linux_11gR2_database_2of2.zip
http://download.oracle.com/otn/linux/oracle11g/R2/linux_11gR2_client.zip
http://download.oracle.com/otn/linux/oracle11g/R2/linux_11gR2_grid.zip
Oracle Database 11g Release 2 (11.2.0.1.0) for Linux x86-64
http://download.oracle.com/otn/linux/oracle11g/R2/linux.x64_11gR2_database_1of2.zip
http://download.oracle.com/otn/linux/oracle11g/R2/linux.x64_11gR2_database_2of2.zip
http://download.oracle.com/otn/linux/oracle11g/R2/linux.x64_11gR2_client.zip
http://download.oracle.com/otn/linux/oracle11g/R2/linux.x64_11gR2_grid.zip
Oracle Database 11g Release 2 (11.2.0.1.0) for Solaris Operating System (SPARC) (64-bit)
http://download.oracle.com/otn/solaris/oracle11g/R2/solaris.sparc64_11gR2_database_1of2.zip
http://download.oracle.com/otn/solaris/oracle11g/R2/solaris.sparc64_11gR2_database_2of2.zip
http://download.oracle.com/otn/solaris/oracle11g/R2/solaris.sparc64_11gR2_client.zip
http://download.oracle.com/otn/solaris/oracle11g/R2/solaris.sparc64_11gR2_client32.zip
http://download.oracle.com/otn/solaris/oracle11g/R2/solaris.sparc64_11gR2_grid.zip
Oracle Database 11g Release 2 (11.2.0.1.0) for Solaris Operating System (x86-64)
http://download.oracle.com/otn/solaris/oracle11g/R2/solaris.x64_11gR2_database_1of2.zip
http://download.oracle.com/otn/solaris/oracle11g/R2/solaris.x64_11gR2_database_2of2.zip
http://download.oracle.com/otn/solaris/oracle11g/R2/solaris.x64_11gR2_client.zip
http://download.oracle.com/otn/solaris/oracle11g/R2/solaris.x86_11gR2_client.zip
http://download.oracle.com/otn/solaris/oracle11g/R2/solaris.x64_11gR2_grid.zip
Oracle Database 11g Release 2 (11.2.0.1.0) for HP-UX Itanium
http://download.oracle.com/otn/hp/oracle11g/R2/hpia64_11gR2_database_1of2.zip
http://download.oracle.com/otn/hp/oracle11g/R2/hpia64_11gR2_database_2of2.zip
http://download.oracle.com/otn/hp/oracle11g/R2/hpia64_11gR2_client.zip
http://download.oracle.com/otn/hp/oracle11g/R2/hpia64_11gR2_client32.zip
http://download.oracle.com/otn/hp/oracle11g/R2/hpia64_11gR2_grid.zip
Oracle Database 11g Release 2 (11.2.0.1.0) for HP-UX PA-RISC (64-bit)
http://download.oracle.com/otn/hp/oracle11g/R2/hpux.parisc64_11gR2_database_1of2.zip
http://download.oracle.com/otn/hp/oracle11g/R2/hpux.parisc64_11gR2_database_2of2.zip
http://download.oracle.com/otn/hp/oracle11g/R2/hpux.parisc64_11gR2_client.zip
http://download.oracle.com/otn/hp/oracle11g/R2/hpux.parisc32_11gR2_client.zip
http://download.oracle.com/otn/hp/oracle11g/R2/hpux.parisc64_11gR2_grid.zip
Oracle Database 11g Release 2 (11.2.0.1.0) for AIX (PPC64)
http://download.oracle.com/otn/aix/oracle11g/R2/aix.ppc64_11gR2_database_1of2.zip
http://download.oracle.com/otn/aix/oracle11g/R2/aix.ppc64_11gR2_database_2of2.zip
http://download.oracle.com/otn/aix/oracle11g/R2/aix.ppc64_11gR2_client.zip
http://download.oracle.com/otn/aix/oracle11g/R2/aix.ppc32_11gR2_client.zip
http://download.oracle.com/otn/aix/oracle11g/R2/aix.ppc64_11gR2_grid.zip
ORACLE10 GR2：
Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for Microsoft Windows (32-bit)
http://download.oracle.com/otn/nt/oracle10g/10201/10201_database_win32.zip
http://download.oracle.com/otn/nt/oracle10g/10201/10201_client_win32.zip
http://download.oracle.com/otn/nt/oracle10g/10201/10201_clusterware_win32.zip
http://download.oracle.com/otn/nt/oracle10g/10201/10201_gateways_win32.zip
Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for Microsoft Windows (x64)
http://download.oracle.com/otn/nt/oracle10g/10201/102010_win64_x64_database.zip
http://download.oracle.com/otn/nt/oracle10g/10201/102010_win64_x64_client.zip
http://download.oracle.com/otn/nt/oracle10g/10201/102010_win64_x64_clusterware.zip
Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for Linux x86
http://download.oracle.com/otn/linux/oracle10g/10201/10201_database_linux32.zip
http://download.oracle.com/otn/linux/oracle10g/10201/10201_client_linux32.zip
http://download.oracle.com/otn/linux/oracle10g/10201/10201_gateways_linux32.zip
Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for Linux x86-64
http://download.oracle.com/otn/linux/oracle10g/10201/10201_database_linux_x86_64.cpio.gz
http://download.oracle.com/otn/linux/oracle10g/10201/10201_client_linux_x86_64.cpio.gz
http://download.oracle.com/otn/linux/oracle10g/10201/10201_clusterware_linux_x86_64.cpio.gz
http://download.oracle.com/otn/linux/oracle10g/10201/10201_gateways_linux_x86_64.cpio.gz
Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for AIX5L
http://download.oracle.com/otn/aix/oracle10g/10201/10gr2_aix5l64_database.cpio.gz
http://download.oracle.com/otn/aix/oracle10g/10201/10gr2_aix5l64_client.cpio.gz
http://download.oracle.com/otn/aix/oracle10g/10201/10gr2_aix5l64_cluster.cpio.gz
http://download.oracle.com/otn/aix/oracle10g/10201/10gr2_aix5l64_gateways.cpio.gz
Oracle Database 10g Release 2 (10.2.0.2) Enterprise/Standard Edition for Solaris Operating System (x86)
http://download.oracle.com/otn/solaris/oracle10g/10202/10202_database_solx86.zip
http://download.oracle.com/otn/solaris/oracle10g/10202/10202_client_solx86.zip
http://download.oracle.com/otn/solaris/oracle10g/10202/10202_clusterware_solx86.zip
Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for Solaris Operating System (x86-64)
http://download.oracle.com/otn/solaris/oracle10g/10201/x8664/10201_database_solx86_64.zip
http://download.oracle.com/otn/solaris/oracle10g/10201/x8664/10201_client_solx86_64.zip
http://download.oracle.com/otn/solaris/oracle10g/10201/x8664/10201_clusterware_solx86_64.zip
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