Guid

Globally (Universally) Unique Identifiers (type GUID or UUID) constants are represented in RDM SQL as a hyphenated string of hexadecimal digits as defined in the following syntax.

guid:
          {UUID | GUID} 'hhhhhhhh-hhhh-hhhh-hhhh-hhhhhhhhhhhh'

update mytypes 
 	set myguid = guid '9757c229-2e94-42a6-9579-194bc004b277'
 	where myrid = 12;