UUID​
uuid UUID type
= != ?= ?!= < > <= >= Comparison operators
uuid_generate_v1mc() Return a version 1 UUID.

type

uuid

UUID - 图1

uuid

Universally Unique Identifiers (UUID).

For formal definition see RFC 4122 and ISO/IEC 9834-8:2005.

Every Object has a globally unique property id represented by a UUID value.

function

uuid_generate_v1mc()

UUID - 图2

std::uuid_generate_v1mc() -> uuid

Return a version 1 UUID.

The algorithm uses a random multicast MAC address instead of the real MAC address of the computer.


1. select uuid_generate_v1mc();



1. {'1893e2b6-57ce-11e8-8005-13d4be166783'}