I'm aiming to create UUIDs, for a project I'm working on.
The standard UUID generators create a very long strings. I'm only anticipating a maximum of 10 million uses and because I'm storing that many potential uuids and other information in-memory, I want to cut it down a bit.
What is the shortest string length containing a-z, A-Z and 0-9 that is good for 10 million unique uuids? If I shorten the string like this, will I also increase the chance of repeats or are the chances of repeats still fairly astronomical?