关于Oracle 的补丁的一些知识

转载地址：

http://blog.itpub.net/26736162/viewspace-2101673/

一、 What's a Patchset?

Compared to all other patch types, a Patchset is released the least frequently. It contains fixes for most known issues for the release and potentially also introduces new features. A patchset is cumulative and when applied it changes the fourth digit of the product release banner - for example, 10.2.0.5 is 4th patch set for 10.2, and 11.2.0.2 is the 1st patch set for 11.2.

A patchset must be installed via the Oracle Universal Installer (OUI) and is generally considered an "upgrade".

Prior to 11gR2, a base release had to be installed before a patchset could be applied. For example, to install 10.2.0.5 on Linux, the 10.2.0.1 base release has to be installed first and then upgraded to 10.2.0.5.

Prior to 11gR2, the same patchset download is used to patch the Clusterware, ASM and Database homes.  For example, Patch 8202632 is the 10.2.0.5 patchset, this same patch (Patch 8202632) will be used to patch the 10.2.0.x Clusterware, 10.2.0.x ASM and 10.2.0.x Database to 10.2.0.5.

Starting with 11gR2, patchset releases are now full releases and no longer require a "base" release, e.g. 11.2.0.2 can be installed directly without having to install 11.2.0.1 first.

Prior to 11gR2 - even though the CRS and RDBMS base releases were provided on separate media (downloadable zip file or separate DVD/CD) - the patchsets for both products were delivered as one i.e. the same patchset could be applied to the CRS as well as the RDBMS home.

Starting with 11gR2 the patchsets for Grid Infrastructure and RDBMS are delivered separately (as they are full releases).

Clusterware patchsets can be applied in a rolling fashion, while database patchsets cannot. For example, you can rolling upgrade clusterware to 11.2.0.2, but you have to shutdown database on all nodes to upgrade to database 11.2.0.2.

一个 11.1.0.7 的patchset 。要先安装11.1.0.X ，再打上这个补丁。

同样，10g也是这样的。 先安装10.1.X，在打上10.2.X的patchset，才会变成10g r2的版本。

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