Search notes:

Oracle function: SYS_GUID

sys_guid returns a Globally Unique Identifier (aka GUID or UUID). The data type of the returned value is a raw(16). 
select
  sys_guid()
from
  dual;
Github repository oracle-patterns, path: /SQL/functions/sys_guid.sql

See also

insert all with sys_guid()
Kun Sun: Oracle SYS_GUID Composition
Oracle SQL functions

Index

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