Sync multiple local MongoDB databases to one remote database - database

In order to build a native desktop application with Electron that can be installed by users in many desktops. Every user must install a local MongoDB database to use the application locally. Now i want to provide a cloud service that can sync the local database for every registered user to the remote server MongoDB database. I'm thinking about putting every local database as a collection in the remote database or maybe just create all the local databases in the remote database by renaming their databases to their usernames.
Which method is good for me? is there a best practice for this problem? what about the limits?

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Deployment of ASP.NET Core Web application

I am starting to write an open source application which is intended to be deployed on premises with MS SQL Server as backend. Now I was wondering how to go about deploying the application and the SQL Server backend.
For MSSQL there is a pretty clear installation path but I was wondering how I could create an easy installer for the web application. The idea is to copy the website to some location, start it and then call a special installation controller where the user could specify a database user with elevated privileges (such as the 'sa' user). The website should then create some database users, views and tables on that database and perform the initial setup. Additionally, it should also modify the configuration of the website to use the correct database user.
Of course, other ideas are welcome as well. How do you handle the deployment of a website for a small company which doesn't have dedicated IT staff.

Restrict database connection to application running from a network share using TNSNames

I have a somewhat unique(though probably not) situation. I have users that access a 3rd party application over a network share. This application connects to an Oracle database. The problem is, we have Production, QA, Test, and Dev databases and separate shares/applications for each, but the application doesn't care what database it connects to. So I have users launching the Test application for testing and they log into the Production database. This causes major issues.
Is there any way to restrict what database they log into by network share?
I tried using TNSNames on each server that houses each version of the application and that works great...if they are running it on the server, but since all users have Oracle installed on their local machines and they run the application from a network share, their Oracle takes over and allows them to connect to any database (using LDAP).

Syncing Local Database with SQL Server on Ionic

I currently have an SQL Server database running on a VM. I also have a REST API made with NodeJS and ExpressJS that is listening for requests connected to this database for the backend.
On the frontend, I would like my Ionic App to have a local database so that users can still view and use the app when there is no internet connection. There are alot of pictures(paths to pictures) on this database. The database is about 3 GB. What is the best way I can implement so that my App can use a local database that will sync with the SQL Server and be able to view the pictures when there is a data connection?
I have looked at PouchDB, however it is a NoSQL local database. Is there anything similar for SQL Server I can use for my front end?

How to sync Firebird with SQL Server database

I have a desktop app which uses a Firebird database. And it works fine, yet I want to also have access to that data online.
So I thought it might be possible to sync the data between Firebird and SQL Server. I know there is a tool called dbconvert but its quite expensive.
Any other solutions which come to your mind? Thanks!
You do not need to change the database. If you want to access your desktop app online you can, for example, place your desktop APP + firebird database on windows server and create a access through RemoteApp. Then you can accessed your application from anywhere (if the client OS can RemoteApp and online)
update
You can place application and database on a different type of server if you will reach them through some "remote desktop".

Database mirroring on Rackspace or Xeround

I´m running 2 servers on Rackspace. I have set up a load balancer that balances the traffic between these two servers.
Each of these servers runs a Glassfish v3 server with a Java EE application on it, that offers a web interface to write some data into server database. The problem is that I need to have the same data on each database (server 1 database and server 2 database).
A resolution to this problem is mirroring of databases.
I would like to ask if there is some automated system to mirror these databases inside the rackspace?
Furthermore I ve found Xendros database cloud that is able to work with Rackspace Cloud. Is it possible to mirror these databases inside the Xeround?
Or are there any better solutions ?
Thanks for answers :)
With Xeround you do not need to mirror your database, you create a single database instance and direct your application servers to work with this instance.
For more information you are welcomed to visit our web site http://www.xeround.com

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