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select 
	'alter user ' ||name|| ' identified by values '''|| password||''';' 
from
	user$
where
	password is not null and
	name not in 
		('SYS',
		 'SYSTEM',
		 'OUTLN',
		 'GLOBAL_AQ_USER_ROLE',
		 'DIP',
		 'DBSNMP',
		 'WMSYS',
		 'XDB',
		 'ANONYMOUS',
		 'ORACLE_OCM',
		 'APPQOSSYS',
		 'XS$NULL',
		 'SYSBACKUP',
		 'AUDSYS',
		 'SYSDG',
		 'SYSKM',
		 'GSMADMIN_INTERNAL',
		 'GSMUSER',
		 'GSMCATUSER'
		 )
/
