-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 11/23/06 10:49, Martijn van Oosterhout wrote: > On Thu, Nov 23, 2006 at 10:23:55AM -0600, Ron Johnson wrote: >> For those times when and that when numeric sequences *are* needed >> (employee_id and account_number for example) they should include a >> check digit, to ensure that you don't mis-type a number and charge >> the wrong account. > > Sure, but the check digit does not need to be stored, as it can be > regenerated on demand. The user interface just verifies the check > digit, then throws it away. $ SET GEEZER $ WRITE SYS$OUTPUT "THAT'S JUST EXTRA CYCLES WASTED BY THE" $ WRITE SYS$OUTPUT "CLIENT. BETTER TO USE THEM FOR SOME OTHER" $ WRITE SYS$OUTPUT "MORE PRODUCTIVE PURPOSE." $ SET NOGEEZER That's the VAX/VMS in me oozing out. But seriously, regenerate it on demand??? That's not how it works. This isn't a CRC or hash function. - -- Ron Johnson, Jr. Jefferson LA USA Is "common sense" really valid? For example, it is "common sense" to white-power racists that whites are superior to blacks, and that those with brown skins are mud people. However, that "common sense" is obviously wrong. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQFFZd+xS9HxQb37XmcRAgB9AJ99CR+I7NvxMWtJkFENPP/IRJUq7QCg709/ eC2gtd+QLk1+PiTU/ub5WOU= =VuM+ -----END PGP SIGNATURE-----
