Oracle is a powerful database management system that is widely used in the development and management of enterprise-level applications. After installing Oracle, we still need to do some configuration to ensure that it runs properly and meets our needs. The following will introduce some configuration operations that need to be performed after Oracle installation.
- Set environment variables
When installing Oracle, we need to add the Oracle installation path to the system environment variables. This makes it easier for us to use Oracle related commands on the command line.
In Windows systems, you can press the Win Pause key to open the system properties, select "Advanced System Settings", select "Environment Variables" in the pop-up dialog box, and find "Path" in "System Variables" , double-click and add the Oracle installation path.
In Linux systems, you can edit the /etc/profile file and add the Oracle installation path to PATH.
- Create a listener program
Oracle database requires a listener program to monitor database connection requests. After installing Oracle, you need to create a listening program.
Open the command line (cmd can be used in Windows systems, and the terminal can be used in Linux systems), enter the following command:
netca
This command will start Oracle Net Configuration Assistant, follow the prompts to complete the listening program can be created.
- Creating a database instance
Creating a database instance is the last step in the Oracle database. Before creating an instance, you need to check whether the Oracle database installation directory contains the necessary files and directories.
Enter the following command on the command line:
dbca
This command will start the Database Configuration Assistant and follow the prompts to complete the process of creating a database instance.
- Configure the network
After creating the database instance, you need to configure the network to ensure that other computers can connect to the database. It may be necessary to modify the port number of the listening program according to the network configuration.
In Windows systems, you can open "Control Panel-Administrative Tools-Services" to find Oracle-related services and configure them accordingly. In Linux systems, you can edit the $ORACLE_HOME/network/admin/listener.ora file to configure accordingly.
Summary
After installing Oracle, we need to perform some configurations to ensure its normal operation. The main configuration includes adding environment variables, creating listeners, creating database instances, and configuring the network. The above operations need to be adjusted according to specific needs to ensure that the Oracle database can successfully meet our needs.
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