Re: Random Unique ID

2007. 03. 23, péntek keltezéssel 15.13-kor tedd ezt írta: > At 9:15 AM +0100 3/23/07, Németh Zoltán wrote: > >2007. 03. 22, csütörtök keltezéssel 12.58-kor tedd ezt írta: > >> At 4:53 PM +0100 3/22/07, Németh Zoltán wrote: > >> >2007. 03. 22, csütörtök keltezéssel 11.42-kor tedd ezt írta: > >> > > >> > > As for efficiency, that's probably not > >>even worth mentioning in this case. > >> > > >> >why not? you would use 2 sql queries while I would use one most of the > >> >time and 2 in case of already reserved ID - that is almost twice as much > >> >processor time > >> >that may count much if the routine is used frequently > >> > >> Go ahead, try it, and tell me how much time it cost. > >> > >> From experience, there are things one can spend > >> their time optimizing and there are other things > >> that one should be able to see that aren't worth > >> pursing. > >> > >> I've been wrong before, but you're open to > >>prove me wrong again, if you like. > > > >okay, I've got up earlier and made a little benchmark. The result > >suprised me, and proved you right. ;) > > Németh: > > Thanks for trying, but I said what I did because > I knew from experience that these types of > actions are blinding fast and getting faster all > the time. > > I'm not suggesting to dispense with looking for > less operations, but sometimes the effort doesn't > exceed other benefits in readability, easier > logic, simpler code, and time spent developing > code. We have been rather slow to realize changes > the speed and memory of hardware. > > For example, we recently had a discussion on the > difference between using "<?" as compared to > "<?php" and the additional text was mentioned as > a "concern". When in fact, if is of no noticeable > or significant concern at all. It's like > discussing a grain of sand on the beach. > > Not that you did this, but sometimes it's best to > figure out what's important and what's not before > making it an issue. yeah, you're right again :) (however my first name is still Zoltán instead of Németh ;) ) that's what I did now. I figured out it's not important. thanks for inspiring me to do that :) greets Zoltán Németh > > Cheers, > > tedd > > -- > ------- > http://sperling.com > http://ancientstones.com ×`%¹x+ / > ‡;hx/http://earthstones.com >