The start-up and shutdown principle of oracle-the start-up phase of oracle
Case 1: how to know which stage the current database is in
SQL > select instance_name,status from v$instance
INSTANCE_NAME STATUS
-
ORCL STARTED-nomount stage
SQL > select instance_name,status from v$instance
INSTANCE_NAME STATUS
--
ORCL MOUNTED-mount stage
SQL > select instance_name,status from v$instance
INSTANCE_NAME STATUS
--
ORCL OPEN-open stage
