oracle数据库自定义函数get_uuid()

1.oracle数据库自定义函数get_uuid()

CREATE OR REPLACE FUNCTION GET_UUID
    RETURN VARCHAR IS guid VARCHAR (50);
BEGIN
     guid := lower(RAWTOHEX(sys_guid()));
RETURN
    substr(guid,1,8)||'-'||substr(guid,9,4)||'-'||substr(guid,13,4)||'-'||substr(guid,17,4)||'-'||substr(guid,21,12);
END get_uuid;

2.查询

 select get_uuid() from dual;