Unique ID

⸺ by Charles Iliya Krempeaux

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A unique identifier (unique ID) is an identifier (ID) that is unique across some (implicitly or explicitly defined) domain.

Let's provide some examples to make all that jargon make more sense.

student ID
• database table primary-key
• digital fingerprint
• UUID version 4

Now let's go into more detail with each of these examples (in the following chapter).