How to shut down service in oracle

Oracle Shutdown Service

Oracle database is a relational database management system, which is widely used in enterprise-level application systems. During the process of running the Oracle database, it is sometimes necessary to shut down some of the services to reduce the load on the server or perform system maintenance. This article will discuss how to shut down services in Oracle database.

1. Stop Oracle Instance

Oracle database instance is a process running in memory, and they use a lot of CPU and memory resources when running. Therefore, stopping unnecessary instances frees up valuable system resources. The method to stop the Oracle instance is as follows:

(1) Use the SQLPLUS command line tool to log in to the database

Open the SQLPLUS command line tool in the console, and use the system administrator or a user with administrative rights Log in to the Oracle database. The syntax is as follows:

sqlplus /nolog
conn sys/[password] as sysdba

(2) Stop the Oracle instance

In the SQLPLUS command line tool, use the following command to stop the Oracle instance:

SHUTDOWN IMMEDIATE;

This command will stop the Oracle instance immediately and related database services. If you want the Oracle database to complete currently pending transactions before stopping the instance, use the following command:

SHUTDOWN TRANSACTIONAL;

2. Stop the Oracle listener

The Oracle listener is A process running on the server that accepts requests from clients and forwards them to the corresponding Oracle instance. If you need to perform server maintenance or upgrade your Oracle database, you may need to stop the listener. Use the following command to stop the Oracle listener:

(1) Use the listener control command line tool

In the command line tool, use the following command to log in to the listener control:

lsnrctl

(2) Stop the listener

In the listener control interface, use the following command to stop the listener:

STOP;

This command will stop the listener immediately.

3. Stop Oracle Network Services

Oracle database provides a variety of network services, such as Oracle Net Services, Oracle Advanced Security, Oracle Net Listener, etc. These services usually take up a lot of system resources, and you may need to stop some of them if system maintenance is required.

(1)Use Windows Service Manager

If you use Windows operating system, you can use Windows Service Manager to stop Oracle Network Service. In the service manager, find the service that needs to be stopped, right-click the mouse, and select "Stop" in the pop-up menu.

(2) Using Oracle Net Services

If you want to stop a specific network service in the Oracle database, you can use the Oracle Net Services tool. In the SQLPLUS command line tool, use the following command to log in to the Oracle Net Services management interface:

NETMGR

In the management interface, click the service you want to stop, and then click the Stop button.

Summary

Shutting down services in an Oracle database is a necessary step for system maintenance. By using the methods described in this article, you can free up valuable system resources when stopping services while ensuring the security and integrity of your database.

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