Accompanying notes for Oracle database (i)

1. View, close, and start the listener
1) Use the Lsnrctl command with the status parameter to see if the listener is starting to work
$lsnrctl status
2) using the LSNRCTL command with the stop parameter, you can shut down the database listener and stop providing remote database services to the external
$lsnrcrl stop
3) using the LSNRCTL command with the stop parameter, you can open the database listener and provide remote database service externally.
$lsnrctl start

2. Starting and shutting down a DB instance
1) After logging in to the Linux system as Oracle, user SYS connects to the database as Sysdba
$sqlplus Sys/manager as Sysdba
2) Start the routine
Sql>startup
3) Close the DB instance
Sql>shutdown Immediate

3. View, stop, and start the Oracle Database console service
1) View Oracle Database Console Service
$emctl Status Dbconsole
If the status is running, start browser Firefox, enter address: https://localhost:1158/em, add to Security exception, enter SYS and its password to log in to the system SYSDBA identity
2) Stop Oracle Database Console service
$emctl Stop Dbconsole
3) Start the Oracle Database console service
$emctl Start Dbconsole

4. Start and Exit Sql*plus
1) Display the startup syntax format:
Sqlplus User name/password
or sqlplus username/password @ Service Name example: $sqlplus scott/[email protected]
$sqlplus Sys/manager as SYSDBA
2) Implicit startup syntax format:
$sqlplus
Enter User-name:scott
Enter Password:tiger
3) Exit Sql*plus
Exit or quit
4) Get Help information
Sql>help

Accompanying notes for Oracle database (i)