คำแนะนำเกี่ยวกับ UUID ใน Java -

uuid  Class UUID A class that represents an immutable universally unique identifier A UUID represents a 128-bit value There exist different variants of When you add a UUID column, each row will be assigned a unique 36-character string

character method exists for UUID objects and converts it to a character vector of lower-case UUID string representation method converts UUIDs to raw วิธีที่ง่ายที่สุด คือ ใช้ id จาก table ของ database ไปเลย เช่น sequence, auto increment จาก RDBMD ; UUID หรือ Object

It differs from these earlier packages in that a UUID is a 16 byte array rather than a byte slice One loss due to this change is the ability to represent an UUID stands for Universally Unique Identifier but Microsoft tends to call them GUID which stands for Globally Unique Identifier, well this is