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DataSnap |
Mon, Dec 31 2007 8:32 AM | Permanent Link |
Thad | I saw some messages about this, but I didn't see any replies that answered it. Does version 4 of dbisam (we dont' have the C/S version I guess you'd need that version to make the
datasnap technology meaningful?) have datasnap support? I'm using Delphi 2005. Also, we're investigating some other technologies. kbmMW Data Abstract 'Vinci' by RemObjects Asta3/AstaIO Does anybody here have experience with these? Can anybody provide some feedback about comparisions of these products and datasnap? Thanks |
Mon, Dec 31 2007 12:01 PM | Permanent Link |
"Farshad" | "Thad" <thollingsworth@paychex.com> ... >I saw some messages about this, but I didn't see any replies that answered >it. Does version 4 of dbisam (we dont' have the C/S version I guess you'd >need that version to make the > datasnap technology meaningful?) have datasnap support? I'm using Delphi > 2005. DBISAM fully supports multi-threaded access so it can be used with DataSnap. > Also, we're investigating some other technologies. > > kbmMW > Data Abstract 'Vinci' by RemObjects I really can't say which product is better. Both have some pros and cons. You need to download trial versions of both products and play for a while. Then you can decide which one is best for you. DataAbstract has a built-in driver for DBISAM. Both products may look easy to use at first glance but if you plan to use them in production you'll notice that the learning curve is not that easy. > Asta3/AstaIO The last time I checked ASTA their server licensing prices was way too high compared with kbmMW and DA. With kbmMW and DataAbstract you pay once and you'll get everything including an unlimited server deployment license plus full source code. OTOH, an Asta Unlimited Server License costs $7500. > Does anybody here have experience with these? > Can anybody provide some feedback about comparisions of these products and > datasnap? There is a thread here from Borland NG: http://coding.derkeiler.com/Archive/Delphi/borland.public.delphi.thirdpartytools.general/2004-02/0283.html This thread is rather old but may give you some idea for each product. |
Tue, Jan 1 2008 4:38 AM | Permanent Link |
"Uffe Kousgaard" | "Farshad" <farshad@NOSPAMfmsoft.net> wrote in message
news:55CC29B1-2D06-48CE-AC34-5C6B09A27581@news.elevatesoft.com... > > DataAbstract has a built-in driver for DBISAM. So does kbmmw. Which is an excellent product. |
Wed, Jan 2 2008 9:28 AM | Permanent Link |
Thad | "Uffe Kousgaard" <oh@no.no> wrote:
"Farshad" <farshad@NOSPAMfmsoft.net> wrote in message news:55CC29B1-2D06-48CE-AC34-5C6B09A27581@news.elevatesoft.com... > > DataAbstract has a built-in driver for DBISAM. >So does kbmmw. Which is an excellent product. I'm starting to wonder why one would want to use these n-tier 3rd party products, what the motivation is. They seem to supply sets of objects that are already available in the delphi ide, and with dbisam, they're actually inheriting from some of the delphi objects. If dbisam has a C/S version, and it supports that IProvider, for the TClientDataSet/TDatasetProvider stuff, than why use these others? The only thing I can see that might make a difference so far, is if these other suites are like many times, like multiples of 10, faster. They've got a dbisam driver, but that's just wrapping some of the dbisam objects, like the connection and database, maybe session. You've still got to write all the in between stuff, for the server and the client. It's like you have to make your own server, but doesn't dbisam C/S have a server already? I just started looking at the RemObjects, so I'm kind of speaking form a perspective of opinion |
Wed, Jan 2 2008 10:46 AM | Permanent Link |
"Uffe Kousgaard" | "Thad" <thollingsworth@paychex.com> wrote in message
news:03072752-3EBB-4A9A-9A54-9EF7805C67FA@news.elevatesoft.com... > > I'm starting to wonder why one would want to use these n-tier 3rd party > products, what the motivation is. Doing 3-tier instead of 2-tier (aka. C/S). Moving business logic away from the client and into a seperate layer between the client and the database. Then many clients can re-use the same business logic. In the case of kbmmw those clients can even be PHP, C#, Java or a lot of other clients. |
Thu, Jan 3 2008 10:14 AM | Permanent Link |
"David Farrell-Garcia" | Thad wrote:
> > I'm starting to wonder why one would want to use these n-tier 3rd > party products, what the motivation is. Pretty much about what what it has always been and that is scalability. 3-Tier is certainly overkill for many applications but for those that need to scale up.. it is the way to go. The database server can reside on a different server then the middle tier server and since the middle tier holds the database logic you can swap out database back-ends quite easily. -- David Farrell-Garcia Whidbey Island Software, LLC |
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