Shamil Salakhetdinov
shamil at users.mns.ru
Mon Dec 12 13:57:46 CST 2005
Jim, How do you plan to connect to the client MS SQL Server instances from your Web Server application/Web Services? You say you will know client SQL Server connection string when user will specify ID but what network protocol etc. do you plan to use? Have a look here - http://msdn.microsoft.com/library/default.asp?url=/library/en-us/architec/8_ar_cs_3flf.asp - there are several options to implement network connections to the client MS SQL Server instances from your Web Server application/Web Services/MS SQL Server. (BTW, in such scenario client MS SQL Server instances should be called 'servers' or they could be 'linked MS SQL Servers' if you will also have MS SQL Server instance runnng on your Web Server). When the question with network connection to the client MS SQL Servers is clear and such connection is functioning well then will you decide to use Web Services to connect to the client databases or will you decide use Data Access Layer classes' instances of your ASP.NET application(s) - both cases will be a possible... <<< I think I see a problem with this as we'd have access to each users password via the log on. What do you think? >>> I'm not computer networks and data access security specialist - what network protocols and IPC APIs should be better selected for your architecture - somebody more knowledgeable in this area from this list would better recommend - anybody? Shamil ----- Original Message ----- From: "Jim DeMarco" <Jdemarco at hudsonhealthplan.org> To: "Access Developers discussion and problem solving" <accessd at databaseadvisors.com> Sent: Monday, December 12, 2005 9:18 PM Subject: Re: [AccessD] Is this possible (X-posted) > Shamil, > > First I'll try to clarify my intent then I'll answer your questions directly. > > I'm trying to eliminate the need for a desktop application for the data transfer process and file schema creation process. I'd like users to log on to our portal. We store a database that contains the connect string for their server database (on their server). When a user logs on we check the organization ID which links to the correct connect string. We then use that string to validate the user at their own SQL database (via Web Service). I think I see a problem with this as we'd have access to each users password via the log on. What do you think? > > Then I'd like to create some data access screens on our portal but the data displayed would come from their SQL databases (accessed via Web Service). > > >> local PC will have Web Server > We prefer not to do this. Why not a Winforms app if this is the case? I'd still have to provide updates to the client app which I'm trying to avoid. > > >>you wanted your users to connect to the Web > >> Server, pass their ID and then Web Server's application use data entry forms > >>generated on Web Server to access user's local data via user's local Web > >> Server's Web Services > No (or sort of). Data entry forms are on our portal but linked (or pointing to) their SQL server database (not local), Web services are hosted here as well. > > You raise an interesting point however. My first go at designing this platform was to let each agency host the web services. Then all we have to do is point at the web service to get data. Does that make more sense? > > I'm trying to take the path of least resistance when it comes to deployment and maintenance which is why I'd like to host the UI and web services if possible. I'd really like one set of web-based UI tools but the ability to connect to many datasources (which are identical as it's the BE to our app). > > Please let me know if I've made mud from mud. > > Jim D. > > > > -----Original Message----- > From: accessd-bounces at databaseadvisors.com > [mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Shamil > Salakhetdinov > Sent: Monday, December 12, 2005 12:10 PM > To: Access Developers discussion and problem solving > Subject: Re: [AccessD] Is this possible (X-posted) > > > <<< > The question is: Can I do this via web services? > >>> > No. > And yes - I mean if you local PC will have Web Server with exposed to the > Outer World Web Services then these Web Services can communicate with > central web server's Web Services. But such system architecture would look > weird to say the least... > > <<< > That done, can I then create data entry forms against their local copy of > the apps database? > >>> > You can export/import data using Web Services - that's clear. > > The rest sounds unclear - you wanted your users to connect to the Web > Server, pass their ID and then Web Server's application use data entry forms > generated on Web Server to access user's local data via user's local Web > Server's Web Services? > > Looks confusing but probably doable. > > Why not have data entry forms running in local application and use data > export/import via Web Services? > > Do you mean you wanted to have one Web Server with WebServices and one > ASP.NET application running on your server, and connecting to the local PCs' > database via "something like Web Services"? > > Shamil > > > ----- Original Message ----- > From: "Jim DeMarco" <Jdemarco at hudsonhealthplan.org> > To: "VB List (E-mail)" <dba-VB at databaseadvisors.com>; "AccessD (E-mail)" > <AccessD at databaseadvisors.com> > Sent: Monday, December 12, 2005 7:08 PM > Subject: [AccessD] Is this possible (X-posted) > > > > dba-VB > > AccessD > > > > List, > > > > We have a VB/SQL app that we are actively marketing to other health plans > and county social service agencies that handles enrollments into Medicaid > and other government funded health programs. I have a need to transmit the > apps data electronically from a health plan to a county agency. Yes we can > simply FTP a file and let an agency pull the data down but it's not quite > that simple. Different agencies have different needs for the data (some > have IT resources, some don't, some need data input to send data back to > plan some don't). > > > > My vision is a web portal where the county can define what data the plan > should send them and define a file of what data they'll send back to the > plan. My app should read the file and generate the appropriate export file > and import data correctly based on the county's export (if any). > > > > Using .NET technologies I'd like the portal to also have the ability to > connect to the local copy of my app's database for authentication and data > access. The question is: Can I do this via web services? Can a user log on > to my portal passing me a site ID so I know where their local database > resides for authentication? That done, can I then create data entry forms > against their local copy of the apps database? > > > > We'd rather not host all data here (competing plans may use the app and > probably wouldn't care for that arrangement!) > > > > Hopefully this isn't too confusing and someone can enlighten me. > > > > TIA, > > > > Jim DeMarco > > Director of Application Development > > Hudson Health Plan > > > > > > > > > > > **************************************************************************** > ******* > > "This electronic message is intended to be for the use only of the named > recipient, and may contain information from Hudson Health Plan (HHP) that is > confidential or privileged. If you are not the intended recipient, you are > hereby notified that any disclosure, copying, distribution or use of the > contents of this message is strictly prohibited. If you have received this > message in error or are not the named recipient, please notify us > immediately, either by contacting the sender at the electronic mail address > noted above or calling HHP at (914) 631-1611. If you are not the intended > recipient, please do not forward this email to anyone, and delete and > destroy all copies of this message. Thank You". > > > **************************************************************************** > ******* > > > > -- > > AccessD mailing list > > AccessD at databaseadvisors.com > > http://databaseadvisors.com/mailman/listinfo/accessd > > Website: http://www.databaseadvisors.com > > -- > AccessD mailing list > AccessD at databaseadvisors.com > http://databaseadvisors.com/mailman/listinfo/accessd > Website: http://www.databaseadvisors.com > > > > > > > **************************************************************************** ******* > "This electronic message is intended to be for the use only of the named recipient, and may contain information from Hudson Health Plan (HHP) that is confidential or privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or use of the contents of this message is strictly prohibited. If you have received this message in error or are not the named recipient, please notify us immediately, either by contacting the sender at the electronic mail address noted above or calling HHP at (914) 631-1611. If you are not the intended recipient, please do not forward this email to anyone, and delete and destroy all copies of this message. Thank You". > **************************************************************************** ******* > > -- > AccessD mailing list > AccessD at databaseadvisors.com > http://databaseadvisors.com/mailman/listinfo/accessd > Website: http://www.databaseadvisors.com