We have an android app that currently sends data to a php script which writes to a mysql DB on the same server. We are thinking of using a scalable DB server e.g. FathomDB (which is just based on amazon RDS & rackspace) so that we can handle load increases easily.
The question is how does our android app write to these remote DBs? Do they have some kind of rest API, or allow you to have a php script similar to the one we have in place at the moment?
I'd say most of services like these have a connector running on the web, like the one you are using. But some of the services you mention (for example amazon rds) have a native mysql connection. So you can connect using mysql to the server and run queries like you currently do in php. You can use ACL to ensure security in your application :)
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I have my application in Delphi with MySQL as a database. This is a Desktop application with local Database connected using ADO components.
I have another web application done in PHP and MYSQL.
I want to merge both databases and connect the Delphi application to the cloud MySQL database.
Do I need to put all my logic in PHP scripts and access them from Delphi?
How Delphi to cloud connection can be established?
You can use FireDAC to connect to a database located in the cloud, as soon as your provider allows that connectivity.
But exposing you database to the internet is not the best secure architecture. As you suggest yourself with naming it, a much better architecture is REST. The idea is to write server side software - could be PHP - to accept REST requests from a client, execute it (access the database) and send a reply to the client.
Today's, the REST requests are frequently using JSON to pass requests and receive replies. JSON is supported by Delphi. In short, this is an ASCII representation for object properties.
If accessing the database directly is what you really want, look at this video by Stephen Ball showing how to access an MS-SQL database on Azure cloud. This would be pretty well the same with mySQL.
I am developing a desktop app and I want to store data in hosted database like MySQL/MongoDB. I know one solution is using webservice to manipulate db. I am wondering is there a way to connect desktop app with hosted db directly.
I am using OpenShift I know I can use port-forward to do this. But it's unpractical to open port forward every time for every PC. So is a way simply like this:
mongoose.connect('mongodb://user:pass#host:port/db');
I tried this but I got 'connect refused' or 'connect not found' errors. OpenShift doesn't allow external access to database directly because security issues, right? Then how could I do it without port-forward?
Also I read some articles about SSH, is it possible to use SSH to access db directly when desktop app is launched?
Thanks for any suggestion.
I don't think OpenShift is going to be a good fit for what you are trying to do, unless you decide to build a service layer between your desktop app and the database. It sounds like you are looking for a Database As A Service. You mentioned both MongoDB and MySQL. MongoLab is a good MongoDB DBaaS option. For other databases like MySQL, PostgreSQL and several others you could look at Amazon RDS.
I am working app in which i want that app should connect to Mysql rds on amazon problem is that when we use simpple db they have there api and other things to connect the db and also the domain but how to connect my sql data base tables in iOS app I have search and found that they dynamicdb also so does mysql will be under dynamic db and we will access that use dynamic db api.
You are going to want an intermediary web service via which database interactions are made.
Without this, you would need to make your database have basically no access restrictions AND embed your DB credentials in your app. This would be extremely foolish.
I would like to create a desktop application that should work with data on a mySql server running on a remote machine.
So each user has a copy of the desktop app and edits data on the remote mySql server.
Now my problem is that the mySql server will not allow connections from other hosts.
Question, is this just the wrong way of creating the app. If not how do I give any host access to the MYsql server.
(I know I can open up for a specific IP but that won't work as the app could be running anywhere)
You should front your database on the server with a thin service layer, where you could do some validation / processing on the data, perform authentication, etc. Your client apps would then expose those methods in your service layer as web services, to which your client apps would communicate using either SOAP/XML, REST/JSON, etc. In general, it is a bad idea to expose your database directly if your application is within a LAN, and a terrible one to expose it on the internet.
I have a hosting account at godaddy ruinning Linux. Is has MySQL. I am creating a J2ME application that runs on android and I was wondering if there is any simpler way to connect from j2me application to my MySQL server?
Is it required to install anything at my server? which I cannot do because of the shared account. Any way to just open the connection, update some data in the MySQL from j2me application?
It is quite simple. You just need to do HTTP application/x-url-form-encoded request on the midlet and set request property to HTTP.POST. Then stream form data as bytes. Receive those post variable using a server side language (i used PHP) like $_POST['var'] and in that server script write MySQL query like insert into .. VALUES.. etc.
I don't know if any DB drivers exist for J2ME. If you can't find them just make layer on the server and implement your own protocol for retrieving data via http or sockets