从哪里下载 Oracle database 11g 软件
登入My Oracle Support，选择Patches & Updates 标签页，点击下方的Latest Patchsets链接：
然后单击Oracle Database，就可以下载11g软件了：
安装单实例数据库需要1和2两个zip文件，安装GI需要第3个zip文件：
| Installation Type | File | Size |
|---|---|---|
| Oracle Database (includes Oracle Database and Oracle RAC) | p13390677_112040_Linux-x86-64_1of7.zip | 1.3G (1395582860 bytes) |
| Note: you must download both zip files to install Oracle Database. | p13390677_112040_Linux-x86-64_2of7.zip | 1.1G (1151304589 bytes) |
| Oracle Grid Infrastructure (includes Oracle ASM, Oracle Clusterware, and Oracle Restart) | p13390677_112040_Linux-x86-64_3of7.zip | 1.1G (1205251894 bytes) |
| Oracle Database Client | p13390677_112040_Linux-x86-64_4of7.zip | 625M (656026876 bytes) |
| Oracle Gateways | p13390677_112040_Linux-x86-64_5of7.zip | 571M (599170344 bytes) |
| Oracle Examples | p13390677_112040_Linux-x86-64_6of7.zip | 465M (488372844 bytes) |
| Deinstall | p13390677_112040_Linux-x86-64_7of7.zip | 113M (119521122 bytes) |