Re: Choose New Era???

kerry@kcbbs.gen.nz (Kerry Sainsbury) wrote: >In article <5h1kpj$p2k$1@despair.u-net.com>, david@go5.com (David W Chan) wrote: >>The problem with Delphi compared to NewEra is that you can't build big >>systems with it. In NewEra you can share your classes across many >>DLLs whereas Delphi forces you to put everything in one. >Can you explain this (I don't understand what you're saying) If you have a base class in one DLL, can you put sub-classes of it in other DLLs? >>NewEra is >>not really appropriate for small systems because you have to do a lot >>of work up-front. >I would suggest that you should do a lot of work up-front in Delphi too >(we have), including the ability to perform Query-by-Example. You have to do more up-front work in NewEra to get it to the same level as "Delphi-out-of-the-box". >>In terms of performance, Delphi runs ok for up to 50-100 active users. >>NewEra is ok for 400-500 active users. >Can you explain these numbers please. Given that, at the end of the day, >both products simply produce a collection of Intel opcodes talking to an >Informix database, what makes NewEra performance better than Delphi's? Stick a LAN analyser at the back and you'll see that NE creates less traffic. I guess Informix knew the way Online worked so they were able to optimise NE to work with it. >In my comparison of NE 1.1 vs Delphi 1.0, it was Delphi that coped with >large datasets *far* better than NE. OK but when you are scaling up on the number of users, other issues come into play. >Similarly, I don't understand how the choice of a *client* language affects >the number of active users. Surely it's the Database's problem to deal with >the number of requests likely to be received by the clients? I think I have explained some of it above. Basically, the network component of the system becomes important and the choice of client tool gives you different options to overcome the bottleneck. >I hear this a lot, but still don't understand. Am I just stupid? >------------------------------------,------------------------------------------ >Kerry Sainsbury, kerry@kcbbs.gen.nz | THE INFORMIX FAQ v2.8 March 1997 >Quanta Systems, Auckland | http://www.iiug.org/techinfo/faq/ >New Zealand. Work: +64 9 377-4473 | ftp://ftp.iiug.org/pub/informix/faq > Home: +64 9 279-3571 | ftp://kcbbs.gen.nz:/pub/informix/ David David W Chan GO5 Limited david@go5.com (work) dwc@cix.compulink.co.uk (home)