Also, along the same lines, if I have only one Oracle home but multiple databases, can some databases continue to run okay if I don't do the post-install steps for them immediately? Thank you.
With respect to your second question about patching only some databases running from the same ORACLE_HOME, I would not recommend this. If you patch the binaries, you should run the database-specific post-installation steps for each database using that ORACLE_HOME. If you don't perform the post-installation steps your partially patched databases may appear to run fine, but you may later encounter problems due to this that will be difficult to troubleshoot.
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