How to restart Oracle

1. Log into Oracle Unix account via SSH (i.e. PuTTY)
2. From the Unix prompt, type the command below to log into Oracle sys account via sqlplus
   
   
   sqlplus sys as sysdba
   
   
3. From sqlplus, type the commands below to shutdown and start up the database
   
   shutdown normal;
   startup mount;
   alter database open;
   exit;
   
   
4. From the Unix prompt, type the command below to restart the Oracle listener
   lsnrctl stop
   lsnrctl start