Kyle Hayes wrote: > On Friday 26 October 2001 10:00, Dana Holt wrote: > > Can I automatically generate a random, unique, integer value in a certain > > range when inserting data into a column using SQL? > > > > If so, how? > > Random is easy. Just find a good RNG (random number generator) somewhere > (there are many available on the 'net, search on Google). Or, use the RAND > function that comes with MySQL. You can find RNGs that have extremely long > periods. > > Unique is easy. Just use an auto-increment field in MySQL. > > Random _and_ unique are not that simple.
You could put both a number from RAND and an auto-increment field to ensure uniqueness when combining the two. But of course crypographicly, that is not a good idea. b. mysql --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
