To stop an Oracle database, perform the following steps: 1. Connect to the database; 2. Shutdown immediately; 3. Shutdown abort completely.
How to stop Oracle database
To stop the Oracle database, follow these steps:
Step 1: Connect to the database
Connect to the database using SQL*Plus or other client tools:
<code>sqlplus / as sysdba</code>
Step 2: Elegant shutdown of the database
Execute the following command:
<code>shutdown immediate</code>
This command will disconnect all sessions from the database and close the database immediately.
Step 3: Completely shut down the database
If you want to clear all database memory and resources, execute the following command:
<code>shutdown abort</code>
This command will terminate all database processes and release all resources.
Things to note
- Shutdown immediately allows the database to perform cleanup operations before shutdown, thereby reducing the risk of data corruption.
- Complete shutdown abort is used when a database fails or requires an emergency shutdown.
- Before executing the shutdown command, make sure that all transactions have been committed or rolled back.
- If the database is using automatic backup or recovery features, make sure that these features are disabled before closing the database.
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