Have updated some configuration in Oracle server, Once its done just tried to restart Oracle Server. Shows an error when start SQL server using startup command,
SQL> shutdown immediate
ORA-00838: Specified value of MEMORY_TARGET is too small, needs to be at least XXXM
We need to increase memory_target space from init.ora and spfileXE.ora file.
To find Oracle HOMEPATH and update it.
Finally restart your Server,