Documentation |
ISO UUDI - se http://en.wikipedia.org/wiki/Uuid. A UUID is a 16-byte (128-bit) number. The number of
theoretically possible UUIDs is therefore 216*8 = 2128 = 25616 or about 3.4 × 1038. This means that 1 trillion UUIDs would
have to be created every nanosecond for 10 billion years to exhaust the number of UUIDs. In its canonical form, a UUID
consists of 32 hexadecimal digits, displayed in 5 groups separated by hyphens, in the form 8-4-4-4-12 for a total of 36
characters. For example: 550e8400-e29b-41d4-a716-446655440000
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