How to view instance name of oracle

There are three ways to view instance names in Oracle: use the "sqlplus" and "select instance_name from v$instance;" commands on the command line. Use the "show instance_name;" command in SQL*Plus. Check environment variables (ORACLE_SID on Linux) through the operating system's Task Manager, Oracle Enterprise Manager, or through the operating system.

How to view instance names in Oracle

Oracle instance names are unique names used to identify a specific database instance. Viewing the instance name is very important for database administrators and developers because it enables them to connect to the correct instance and perform tasks.

Command line method

On the command line, you can use the following command to view the instance name:

 <code>sqlplus /nolog</code>

Then you can run the following command:

 <code>select instance_name from v$instance;</code>

SQL*Plus method

You can also view the instance name in SQL*Plus. To do this, connect to the instance and run the following command:

 <code>show instance_name;</code>

result

Any of the above methods will return the instance name corresponding to the specific Oracle instance you are connected to.

Other methods

In addition to the above methods, there are other methods to view the instance name:

• Task Manager for the operating system: On Windows or Linux, you can view Task Manager to find the instance name of the Oracle process.
• Oracle Enterprise Manager: If you are using Oracle Enterprise Manager, you can find the instance name in the Database tab.
• Environment Variables: On Linux, you can check the ORACLE_SID environment variable to get the instance name.

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