Oracle_生成uuid

oracle

select sys_guid() from dual; 
select LENGTH(sys_guid())from dual;
select RAWTOHEX(sys_guid()) from dual;
select lower(sys_guid()) from dual;

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32
951B4863B23F4DA1E0500A0A3F6E4F44
951b4863b2404da1e0500a0a3f6e4f44

sqlserver

select  newId();
select  len(newId());  
select replace(newId(),'-','');
select len(replace(newId(),'-',''));
select  Lower(replace(newId(),'-',''));
select upper(replace(newId(),'-',''));


846BA006-9158-43A0-B72B-F2246A8C1C8D
36
42E258218EA64FAEA726DADBC7E9861A
32
4056f9eca43749f3b26720efbbe3630d
387138A2B3C7492FA8E29511DCE43753