Oracle sets environment variables

When using Oracle database, you need to configure the Oracle environment by setting environment variables. In this article, we will explore the methods and steps for Oracle to set environment variables. After setting up the Oracle environment, we can use the Oracle database for development and management.

1. Determine the Oracle version

First, we need to know what Oracle version we are using. Oracle currently has multiple versions, such as Oracle 11g, 12c and 18c. After determining the version, we need to download the corresponding software package from the Oracle official website.

2. Installing Oracle

After downloading the Oracle software package, we need to install it according to the official installation steps. During the installation process, Oracle will ask us which components and features we want to install. We can choose according to our needs or choose the default installation option.

3. Create Oracle user

After the Oracle installation is completed, we need to create a database user. When using the Oracle database, you must have a username and password. We can create users and set permissions through the Oracle console or SQL command line tools.

4. Set environment variables

After creating the user, we need to set the environment variables. Environment variables are specific variables stored in the operating system that tell the operating system where to find a required file or program. When setting up the Oracle environment, we need to set two environment variables:

• ORACLE_HOME: The location where the Oracle software package is installed.
• PATH: The location of the bin folder of the Oracle software package.

In Windows systems, you can set environment variables by following these steps:

• Right-click "My Computer" and select "Properties".
• Select "Advanced System Settings" in the window that opens.
• Click "Environment Variables" in the "System Properties" window.
• Add ORACLE_HOME and PATH variables in the "Environment Variables" window.

In Linux systems, you can set environment variables by editing the "/etc/profile" file. After opening the file, add the following content at the end:

export ORACLE_HOME=The location where the Oracle package is installed
export PATH=$ORACLE_HOME/bin:$PATH

Save the file with " source /etc/profile" command to make the modification effective.

5. Test the Oracle environment

After setting the environment variables, we can test the Oracle environment in the command line window. Enter "sqlplus" in the command line. If we can see the Oracle command line prompt, it means that the Oracle environment has been set up correctly.

6. Using Oracle management tools

After setting up the Oracle environment, we can use Oracle management tools to develop and manage the Oracle database. For example, Oracle SQL Developer is a free graphical tool that helps us easily manage and query Oracle databases.

Summary

In this article, we explored the methods and steps for setting environment variables in Oracle. By setting environment variables, we can tell the operating system where to find the required files or programs to successfully set up and use the Oracle database. When using Oracle database, we need to pay attention to security and data protection to ensure data security and integrity.

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