oracle 12 linux installation
Oracle is a relational database management system developed by Oracle Corporation to provide efficient and scalable data management solutions. It is very important to install Oracle database on Linux operating system because it can provide more efficient performance and better reliability. In this article, we will explain how to install Oracle 12 database on Linux system.
- Preparation
Before starting the Oracle 12 Linux installation, you need to prepare the following items:
- Linux operating system: Oracle 12 latest Version only supports Linux 6 and 7.
- Oracle 12c software: can be downloaded from Oracle’s official website.
- Maximum number of processes allowed: The Linux process limit value must be set to 1024 or higher, otherwise the Oracle database cannot operate normally.
- Installing the Linux operating system
Before you start installing Oracle 12, you need to install the Linux operating system first. If you are using Red Hat Enterprise Linux (RHEL) or CentOS Linux, you will need to install version 6.x or 7.x.
- Download and install Oracle 12c software
During the installation process, you need Oracle 12c software. You can find the version of Oracle 12c on the download page of the official website. After the download is complete, you need to upload it to the server where the Linux operating system is installed.
- Install Oracle 12c
In this step, we will introduce how to install the Oracle 12c database.
4.1 Confirm that all preparations have been completed as required
Before starting the installation, please ensure that all the above preparations have been completed.
4.2 Unzip the installation software
You need to unzip the Oracle 12c software and place it in the correct location. You can follow the instructions below:
$ unxz -cd oracle-12.1.0-1.0.x86_64.rpm.xz > oracle-12.1.0-1.0.x86_64.rpm
$ rpm -ivh oracle-12.1.0-1.0.x86_64.rpm
4.3 Set Oracle 12c environment variables
You need to set Oracle 12c environment variables and add them to the system configuration file. You can follow the instructions below:
$ export ORACLE_HOME=/u01/app/oracle/product/12.1.0/dbhome_1
$ export PATH=$ORACLE_HOME/bin:$PATH
4.4 Configure Oracle 12c database
Now, you need to configure Oracle 12c database. In this step, you need to configure the database using the dbca command.
$ dbca
Follow the prompts to complete the database configuration. During this process, you need to specify the name of the Oracle 12c database, the port number of the listener, the character set, and the location of the installation file, etc.
4.5 Start Oracle 12c database
Start the database and follow the instructions below:
$ sqlplus '/as sysdba'
SQL> startup
Now, you have successfully installed the Oracle 12c database. You can use the client tool of your choice to connect to the database server and start using Oracle Database.
Summary
Installing the Oracle 12c database is a relatively complicated process that requires attention to many aspects. Before you begin installation, be sure to double-check that all necessary preparations have been completed. If you follow the above steps, then you will be able to successfully install Oracle 12 Linux database and start using all the features of the software.
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