What are UUIDs, and should you use them?
The post What are UUIDs, and should you use them? first appeared on Qvault . A universally unique identifier (UUID) is a 128-bit format for creating IDs in code that has become popular in recent years, especially in relation to database keys. By using UUIDs, you ensure that your ID is not just unique in the context of a single database table or web application, but is truly unique in the universe. No other ID in existence should be the same as yours. Sorry to interrupt! I just wanted to mention that you should check out my new free Go course. It’s designed to teach you all the fundamentals of my favorite coding language. Learn Golang Now It is important to note that while the probability that a UUID will collide with another is not zero , its practically zero. The chances of collision are so astronomically low, worrying about it would be ridiculous. The total number of possible UUIDs is 2^128 or 340282366920938463463374607431768211456 . UUID Generator Online