sqlplus '/as sysdba'
show parameter password
select * from v$pwfile_users;cd $ORACLE_HOME/dbs
orapwd
orapwd file=orapwkin entries=10 password=managersqlplus '/as sysdba'
show parameter password
select * from v$pwfile_users;cd $ORACLE_HOME/dbs
orapwd
orapwd file=orapwkin entries=10 password=manager