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18c Oracle Database Installation(On-Premise)

You have three
options to install database; Starting with Oracle Database 18c release.
1) Image-based Oracle Database Installation
2) RPM-Based Oracle Database Installation
3) Read-Only Oracle Home

1) Image-based Oracle
Database Installation (new in Oracle 18c, on-premise)
Image-based Installation enables you to
download zip file and extract the image software into your Oracle Home
directory and run Installer script to start database installation.
Unzip the download and Re-link
binaries…that’s it.

2) RPM-Based Oracle Database Installation
Here, using RPM-based Database Installation
(RDI), use rpm -ivh command to install database installation, which performs
pre-validations, extract packages assigns ownership, oracle inventory, users
and groups, and executes all other scripts and root operations to complete
database software installation.

3) Read-Only Oracle Home (new in Oracle
18c, on-premise)
In this option, you are privileged to make
your Oracle Home in read-only mode. Database tools and processes writes under
ORACLE_BASE path rather ORACLE_HOME directory.
This helps to do version control and patching
oracle home. Oracle has include built-in tool, called “rhpctl”, that
enables you to switch from the current Oracle Database home to a patched Oracle
Database home.