ORACLE-DB Startup & shutdown | oracle 19c | Database Operating Modes

Описание: Database startup: For any normal user to access the database, the instance has to be started up and it should mount and open the corresponding database. We term the entire steps as database startup. In short, database startup includes the following steps:

1. Start an instance.
2. Mount the database.
3. Open the database.

Database Shutdown: During a database shutdown we close the database and terminates the instance.

Different Modes in Database Shutdown
There are different modes to bring down the database:
1. Shutdown immediate
2. Shutdown transactional
3. Shutdown normal
4. Shutdown abort
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