Re: Choose New Era???

Yes, but David, isn't the real advantage of NewEra coming to light when you do application partitioning? Of course this isn't a panacea. In some cases you will even get worse responce times for one of several reasons (too many small requests going over the network, more data moved between objects than at the sql/db level, overloaded server++). In other cases you might gain significantly by doing dataprocessing on the server and send less data over the network. Some parts of many applicataions also have to run on the server (batch updates, some reports++). In small systems for best performance, in large systems often the one and only option. Here it seems to me the advantage of one language to do it all in is significant. I seem to remember Kerry said he was using 4GL programs started via the system command of a stored procedure in some such cases. Many others use Cobol or C programs for this. Although it might actually work very well, to me the single language advantage is prety significant. We don't use NewEra for mostly the same reasons Kerry don't although I know you and others are successful with it. We are however actively investigating Java which we think can give you all the advantages of NewEra and Delphi combined and then some. Nice GUI interface (still some things lacking, but coming in Java). Applications can be partitioned extensively. May be we can write thin clients (Delphi can't - yet at least, NewEra never realy delivered on that promise, nor do I think it ever will). It has an all important multithreading built into the language. I could do a lot with that in a gui environement to make realy snappy applications. CORBA (to the extent it will work), TP monitor and other tool support allready is available and more is coming by the day (one need real ease of use here and performance). Tools are very low priced and runtime is cheap, moving towards zero. It's in the face of this a current evaluation of NewEra, Delphi and other similar tools gets realy interesting. david@go5.com (David W Chan) wrote: :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) : Nils.Myklebust@idg.no NM Data AS, P.O.Box 9090 Gronland, N-0133 Oslo, Norway My opinions are those of my company The Informix FAQ is at http://www.iiug.org