Installing Oracle

This tutorial provides a comprehensive, step-by-step guide to installing Oracle Database on different platforms, including Windows, Linux, and macOS.

1. Prerequisites

Before you begin, ensure that you have the following prerequisites:

• Administrator privileges on your system
• Enough disk space and memory
• Internet connection for downloading installation files

2. Downloading Oracle Database

First, download the Oracle Database software from the official Oracle website:

• Go to the Oracle Database Downloads page.
• Select the appropriate version and platform for your system.
• Download the installation files.

3. Installing Oracle on Windows

Follow these steps to install Oracle Database on a Windows system:

1. Extract the downloaded ZIP file to a directory.
2. Open the extracted folder and run setup.exe.
3. Follow the installation wizard:
• Step 1: Configure Security Updates (optional)
• Step 2: Select the installation option (e.g., Create and configure a single instance database)
• Step 3: Select the system class (e.g., Desktop class)
• Step 4: Specify Oracle Home User
• Step 5: Specify installation location
• Step 6: Specify configuration type (e.g., General Purpose / Transaction Processing)
• Step 7: Specify database identifiers and passwords
4. Click Install to begin the installation.
5. Once the installation is complete, click Close.

4. Installing Oracle on Linux

Follow these steps to install Oracle Database on a Linux system:

1. Extract the downloaded ZIP file:
unzip linuxx64_12201_database.zip -d /your_installation_path
2. Navigate to the extracted directory:
cd /your_installation_path/database
3. Run the Oracle Universal Installer:
./runInstaller
4. Follow the installation wizard:
• Step 1: Configure Security Updates (optional)
• Step 2: Select the installation option (e.g., Create and configure a single instance database)
• Step 3: Select the system class (e.g., Server class)
• Step 4: Specify Oracle Home User
• Step 5: Specify installation location
• Step 6: Specify configuration type (e.g., General Purpose / Transaction Processing)
• Step 7: Specify database identifiers and passwords
5. Click Install to begin the installation.
6. Run the root scripts when prompted:
su - root
/your_installation_path/root.sh
7. Once the installation is complete, click Close.

5. Installing Oracle on macOS

Installing Oracle Database on macOS is not officially supported. However, you can use Oracle's VirtualBox to create a virtual machine (VM) and install Oracle Database on a Linux VM. Follow these steps:

1. Download and install Oracle VM VirtualBox.
2. Create a new virtual machine and install a supported Linux distribution (e.g., Oracle Linux, CentOS).
3. Follow the instructions in the "Installing Oracle on Linux" section to install Oracle Database on the VM.

6. Post-Installation Steps

After the installation is complete, perform the following post-installation steps:

• Verify the installation by logging into the Oracle database using SQL*Plus:
sqlplus / as sysdba
SELECT * FROM v$version;
• Set environment variables:
export ORACLE_HOME=/your_installation_path
export PATH=$PATH:$ORACLE_HOME/bin
• Create a listener using Oracle Net Configuration Assistant:
netca
• Start the listener:
lsnrctl start
• Start the database:
sqlplus / as sysdba
STARTUP;

7. Conclusion

By following this step-by-step guide, you should be able to install Oracle Database on Windows, Linux, or macOS (using a VM). Oracle Database is a powerful and versatile RDBMS that can handle a wide range of data management tasks. Once installed, you can begin exploring its features and capabilities to meet your database needs.