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I am working on an android application for my institute. I have to connect my app to the existing database of the college, although there is no API written. When I contacted the administration for help then they only handed me a SQL connection string and told me to write the API myself. I want to focus on the application only. Is there any way I can skip the API writing and still connect to the database easily and quickly??
As per my knowledge you cannot access database without using API. You can create your own database in SQLite but it will be local (offline) database.
One more thing, you can migrate database from one platform to another, but you will need an API to access data.
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Can we Use phpmyadmin and Firestore in a same Android App ?? Assuming if one part of the App contain a realtime feature (Chatting App),for which Database is Firestore And other part contain simple user features like viewing the stored data in Database(eg. Wikipedia),lets say it's DB is PhpMyadmin. will it be posssible ?
Yes you can. I did that recently in a project. Firebase is very easy just check the documentation.
You can actually use Firebase for everything. including storing and retrieving data. but, if you want to use another online DB, Web server or API that's totally doable.
I would recommend that you do a separate demo project using firebase and another Retrofit for example.
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I need to have an android app that can read and write to an online database, and a windows pc app that can do the same. Basically I want to view/modify a set of data from the database from both my mobile and pc.
I considered using firebase as the online database for my android app, but I don't know if can query the data from my windows pc, if say I am using Qt to program a windows app.
Please help !
Even it's a broad question a quick answer would be yes, you can query the data from your Windows pc. There is an interesting articole written a few moths ago named Firebase Database REST API for QT.
Take a look a this post for a better understanding.
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I want to develop an android app which will be help a shop owner can input his daily sales expense, employee history, product setting and it show day to day or monthly profit. when he use this app no need to connect internet connectivity. data all are store in sd card but if he want in internet connectivity state he can save data in dropbox. So as like a financial app when I build this which program I need to know like java, xml ?? there are need any database program ??? I am a new Apps Developer.
You would need a good understanding of Android fundamentals, XML layouts and SQLite db. Android training is a great place to start. A good sample app to start with all the DB stuffs comes with the SDK installation. Path is: \samples\android-17\NotePad
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My application needs a database. It is very cheap in size implementation with sqlite, but one of my friends told me that I can store the DB on the cloud, obviously if you put your DB in the cloud you need internet service to get access to the DB but you can store the DB that is from the cloud on the device? So when the user can get the DB from the cloud storage and automatically 'download' the DB from the cloud to the device to run offline.
Assuming that I need images (pretty small) for my app is this effective? How? Why?
I was looking at www.parse.com to store my DB.
If your data 'is very cheap in size' as you are saying, then I would suggest you to keep it within the application. Keeping dependency on internet is unnecessary as you are saying you want to run application in offline mode.
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I need to move data from one database to another , both databases are of same schema, only thing one database is will be in server and one will be in application (local sqlite database)
There are heaps of good tutorials for achieving the syncing and communication between an Android App and a server (via web service) around:
first
second
third
Just search for "android php (my)sql" or maybe "android jsp (my)sql" if you go tomcat or some other java server.
One of the most promising way is to create an app to sync database over server to local database. It'll take more time but would be working. For this you need to create a web service.