The Old New Thing

GUIDs are designed to be unique, not random

May 23, 2012 May 23, 2012 05/23/12

Raymond Chen

A customer liaison asked, "My customer is looking for information on the GUID generation algorithm. They need to select N items randomly from a pool of M (jury selection), and their proposed algorithm is to assign each item a GUID, then sort the items by GUID and take the first N." (I've seen similar questions regarding using ...