Re: Random Code

Do you mean W3E4-22ER would be valid? If so there would be 36^8 (2,821,109,907,456) possible values. A truly random generator algorithm cannot guarantee uniqueness. I'm guessing what you want is to generate each possible value once in a pseudo-random order. Would just apparent randomness suffice? With what frequency do the values need to be generated? Once every few seconds/minutes or multiple times per second? ~~LF Sigurd Magnusson wrote: > Whats the best way to make a completely random, unique code in the > format "ABCD-1234" where each of the 8 characters can be alphanumerc; > 0-9,A-Z... I thought about generating a 36^4 number, converting to to > base '36', and repeating the process. What's a good way to ensure the > code is not repeated, though? > > Siggy