Oracle Shutdown / Restart
sqlplus /nolog And use the following commands to shut an instance down:
SQL> connect system as sysdba;
SQL> shutdown immediate; Use 'shutdown abort;' in case there are hanging connections/processes, but keep in mind that this kills those processes (i.e. use at your own risk). Shutdown + Start:
sqlplus /nolog SQL> connect system as sysdba;
SQL> startup force;