1、12.2.0.1.0相对稳定，也需要打上最新的PSU补丁

2、ASM可以用在单实例的，相对性能也会更好。

p17240159_121020_Generic.zip 这个是什么补丁包呢oracle 还是grid呢？怎么打补丁呢

这个是OEM的补丁，按补丁README安装就好了

这个补丁不打有什么影响呢？下面的步骤对吗？

1、opatch lsinventory

2、opatch prereq CheckConflictAgainstOHWithDetail -phBaseDir ./17240159

Install the PSU by running the following command:

3opatch apply

4、 sh ./post_deploy.sh

1、opatch lsinventory

2、opatch prereq CheckConflictAgainstOHWithDetail -phBaseDir ./17240159

opatch apply

更新到这步出现下面错误

Log file location : /u01/app/oracle/product/12.1.0/db_1/cfgtoollogs/opatch/17240159_Apr_27_2019_19_02_50/apply2019-04-27_19-02-49PM_1.log

Applying interim patch '17240159' to OH '/u01/app/oracle/product/12.1.0/db_1'

Verifying environment and performing prerequisite checks...

Prerequisite check "CheckApplicable" failed.

The details are:

Patch 17240159: Required component(s) missing : [ oracle.sysman.oms.core, 12.1.0.2.0 ] 

Log file location: /u01/app/oracle/product/12.1.0/db_1/cfgtoollogs/opatch/17240159_Apr_27_2019_19_02_50/apply2019-04-27_19-02-49PM_1.log

Recommended actions: This patch requires some components to be installed in the home. Either the Oracle Home doesn't have the components or this patch is not suitable for this Oracle Home.

OPatch failed with error code 39

如果没有使用OEM，那么这个补丁17240159可以不用打。这个错误提示是打这个补丁的前提是要安装了一些组件，如果没有安装，刚会报错。

Recommended actions: This patch requires some components to be installed in the home. Either the Oracle Home doesn't have the components or this patch is not suitable for this Oracle Home.