SAP UUID - Glossary

Get Example source ABAP code based on a different SAP table
  SAP Help

VERSION 5 IN

UUID
Short for Universal Unique Identifier. Universally unique identifier that is generated in accordance with OSF standards from the system time stamp and the network address. In ABAP, a UUID can be created using the system class CL_SYSTEM_UUID and the SQL function UUID.
ABAP_MORE_INFO