-- ORACLE
SELECT SYS_GUID(), REGEXP_REPLACE(SYS_GUID(), '(.{8})(.{4})(.{4})(.{4})(.{12})', '\1-\2-\3-\4-\5')
FROM DUAL;

DC2763FB497FF33AE050007F01007D07	DC2763FB-4980-F33A-E050-007F01007D07



-- MSSQL
SELECT NEWID();

59DF52A2-E8CF-4E59-BCDE-90DD75CFE9BF