How do I connect Android app to online database?

If you want to use Firebase Database (the simpler method), go here. You have documentation there for you to integrate Firebase in your app and use FirebaseDatabase. It is a NoSQL databse.

If you want to connect with a database hosted in your own server, checkout this following StackOverflow link: Can an Android App connect directly to an online mysql database

Hey, there is several options to connect Android apo to online database

  1. Firebase- A online Database, that developed by Google, For using this You have go through with this link Sign in - Google Accounts ( quite simpler then others)
  2. MySql- you can use MySQL as online database, but for using MySQL you have to write some Scripts as the need of your application, and To connect MySQL to Android you have to integrate Your Application with API

Most of the Android applications will have a need to fetch the data from a database stored in a web server. An android application communicates with PHP with necessary parameters and PHP will in turn communicate with MYSQL database to fetch the data and return it to an android application.

So, Here are the best sources for my opinion that will sure clear your query.

Visit Following:

Integrate PHP and MYSQL with an Android Application

How to connect Android with PHP, MySQL

Hope This Answer Will Help You.!

Thank You.!!

Most of the Android applications will have a need to fetch the data from a database stored in a web server. An android application communicates with PHP with necessary parameters and PHP will in turn communicate with MYSQL database to fetch the data and return it to an android application. In this tutorial, we will show you how to integrate PHP and MYSQL with an android application. In this example, our android application fetches all the upcoming movies stored in a database and populates them in a RecyclerView. Each movie can be clicked to get a pop up menu which will have several options, su

Most of the Android applications will have a need to fetch the data from a database stored in a web server. An android application communicates with PHP with necessary parameters and PHP will in turn communicate with MYSQL database to fetch the data and return it to an android application. In this tutorial, we will show you how to integrate PHP and MYSQL with an android application. In this example, our android application fetches all the upcoming movies stored in a database and populates them in a RecyclerView. Each movie can be clicked to get a pop up menu which will have several options, such as Add to Favorites, Add to Watchlist etc.

Project on Github

Let’s dive right into creating an android ‘Upcoming Movies’ application. The steps are described in 4 detailed yet simple parts :

I have done research on database which we can use in android app. I have found multiple databases like Berkeley DB, SQLite, Couchbase and Realm that support data storage in android application. But I have found following two databases which are best for Android application development.

· SQLite database

· Realm

SQL database:

SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation.

SQLite supports all the relational database features. In order to access this database, we don't need to establish any kind of conne

I have done research on database which we can use in android app. I have found multiple databases like Berkeley DB, SQLite, Couchbase and Realm that support data storage in android application. But I have found following two databases which are best for Android application development.

· SQLite database

· Realm

SQL database:

SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation.

SQLite supports all the relational database features. In order to access this database, we don't need to establish any kind of connections for it like JDBC, ODBC. We only have to define the SQL statements for creating and updating the database. Afterwards the database is automatically managed by the Android platform.

Access to an SQLite database involves accessing the file system. This can be slow. Therefore, it is recommended to perform database operations asynchronously.

Realm:

Realm is a mobile database and a replacement for SQLite. Although is an OO database it has some differences with other databases. Realm is not using SQLite as its engine. Instead it has own C++ core and aims to provide a mobile-first alternative to SQLite. The latest version at the moment is 0.90.0.

Advantages of Realm over SQLite:

· Faster than SQLite database (up to 10x speed up over raw SQLite for normal operations)

· Easy to use

· Object conversion handled

· Convenient for creating and storing data on the fly

· Realm has lots of modern features, such as JSON support, a fluent API, data change notifications, and encryption support.

Disadvantage of Realm:

· Can’t access objects across threads

· Still under active development

· Deleting and updating one by one slower in Realm than SQLite.

There is no straight answer for this question. The choice completely depends upon the requirement of the application. So unless you don’t have the actual problem you cannot tell about the best solution. Keeping this in mind all the options that we have, have their own pros and cons.

We have many options for database for example

  • SQLite,
  • Firebase Realtime Database
  • FireStore
  • Realm
  • Room
  • MySQL etc.

In many cases you might end up using multiple database. Because often we use both an external database that resides in our server and a local database (usually SQLite) that caches our data in mobile for offline

There is no straight answer for this question. The choice completely depends upon the requirement of the application. So unless you don’t have the actual problem you cannot tell about the best solution. Keeping this in mind all the options that we have, have their own pros and cons.

We have many options for database for example

  • SQLite,
  • Firebase Realtime Database
  • FireStore
  • Realm
  • Room
  • MySQL etc.

In many cases you might end up using multiple database. Because often we use both an external database that resides in our server and a local database (usually SQLite) that caches our data in mobile for offline access.

Now let’s assume some scenarios.

For example you want to build a chat application, or a social network kind of a thing. If you want to use only SQLite or local database for this kind of application then it is not possible. In this case you must use a database that is central to all the users. For example Firebase Database or MySQL.

But if you are building an isolated billing system for a store where the data do not need to be accessed outside the application you can use SQLite or Room.

Now let me do some self promotion ;)

I have published tutorials about using database in Android you can check it.

#1 Android Room Tutorial

#2 Android MySQL with PHP and Retrofit

#3 Firebase Realtime Database Tutorial

And if you will check my channel then you will find a lot more. Hope this helps. Thank You :)

No, you can’t directly connect an android application to a database server. What you can do you is to connect your android application to any server-side programming language (Ruby, PHP, Node JS) and then you can simply connect the server-side language with Maria DB or any database server.

The code for Android to connect to a server-side language taken from android documentation

  1. URL url = new URL("http://www.android.com/");
  2. HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
  3. try {
  4. InputStream in = new BufferedInputStream(urlConnection.getInputStream());
  5. read

No, you can’t directly connect an android application to a database server. What you can do you is to connect your android application to any server-side programming language (Ruby, PHP, Node JS) and then you can simply connect the server-side language with Maria DB or any database server.

The code for Android to connect to a server-side language taken from android documentation

  1. URL url = new URL("http://www.android.com/");
  2. HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
  3. try {
  4. InputStream in = new BufferedInputStream(urlConnection.getInputStream());
  5. readStream(in);
  6. } finally {
  7. urlConnection.disconnect();
  8. }

MariaDB is a fork of MySQL, the database structure and indexes of MariaDB are the same as MySQL.

This is the code for PHP

  1. $hostname = 'localhost';
  2. $user = 'root';
  3. $password = 'password';
  4. $databaseName= 'database'
  5. $conn = mysql_connect($hostname, $user, $password);
  6. if(! $conn ) {
  7. die('Could not connect: ' . mysql_error());
  8. }
  9. mysql_select_db($databaseName)

Database Server ???

A server and database are different.

Databases can be on :-

1 Local Device

If you are thinking of using database to store information on mobile device itself than you can use SQLite database provided by android itself or use can use Realm Database which is trending now a days.

2 Server

You can choose any platform to create server side database and access it data using REST APIs or web services.There are two approaches to create database at server

1 You can SQL database like MySql

2 You can use NoSql database like MongoDb

one more thing now Firebase which is provided by google can be

Database Server ???

A server and database are different.

Databases can be on :-

1 Local Device

If you are thinking of using database to store information on mobile device itself than you can use SQLite database provided by android itself or use can use Realm Database which is trending now a days.

2 Server

You can choose any platform to create server side database and access it data using REST APIs or web services.There are two approaches to create database at server

1 You can SQL database like MySql

2 You can use NoSql database like MongoDb

one more thing now Firebase which is provided by google can be used to create the online database. It is very efficient and integration on android is also not that touch. So if you are thinking to create an backend for your app then kindly look for firebase.

You cannot directly connect android Application to external databases. You would need to use some form of webservice, may be a simple java webservice or php scripts, which may retrieve data from the database.

There are few Library files like K-Soap which will facilitate in sending and geting data from Web services.

There are lot of online Applications,which allows you to create online databases for free.One such website,which I liked the most is OpenShift - PaaS by Red Hat, Built on Docker and Kubernetes.

Openshift allows to create databases for Free and you can also host web services or Web Appl

You cannot directly connect android Application to external databases. You would need to use some form of webservice, may be a simple java webservice or php scripts, which may retrieve data from the database.

There are few Library files like K-Soap which will facilitate in sending and geting data from Web services.

There are lot of online Applications,which allows you to create online databases for free.One such website,which I liked the most is OpenShift - PaaS by Red Hat, Built on Docker and Kubernetes.

Openshift allows to create databases for Free and you can also host web services or Web Applications for free. If you like the service, you can pay and extend to a Premium account.

I guess the “fast and easy” answer is: Whichever one you’re most comfortable with and adept at using is a good choice. It is difficult to recommend one database over another without knowing more about the requirements, etc.

Off the cuff, I’d say MySQL is a good choice if you want to host the database externally. MySQL is perhaps the most “universal” contender. It works well, is easy to use and popular enough to make finding help with problems pretty easy.

On the other hand, if you’re looking to embed the database on a phone or something, you might want to look at SQLite for many of the same reas

I guess the “fast and easy” answer is: Whichever one you’re most comfortable with and adept at using is a good choice. It is difficult to recommend one database over another without knowing more about the requirements, etc.

Off the cuff, I’d say MySQL is a good choice if you want to host the database externally. MySQL is perhaps the most “universal” contender. It works well, is easy to use and popular enough to make finding help with problems pretty easy.

On the other hand, if you’re looking to embed the database on a phone or something, you might want to look at SQLite for many of the same reasons.

You can not directly access the Oracle database from android Application. you need to create webservices in PHP, .net or in Java to make connection with Oracle Database. After creating this webservice , you need to connect your application with the webservice. This is the simplest way of connecting with Oracle Database.

Or, use a Virtual JDBC Driver that uses a three-tier architecture: your JDBC code is sent through HTTP to a remote Servlet that filters the JDBC code (configuration & security) before passing it to the MySql JDBC Driver. The result is sent you back through HTTP. There are some f

You can not directly access the Oracle database from android Application. you need to create webservices in PHP, .net or in Java to make connection with Oracle Database. After creating this webservice , you need to connect your application with the webservice. This is the simplest way of connecting with Oracle Database.

Or, use a Virtual JDBC Driver that uses a three-tier architecture: your JDBC code is sent through HTTP to a remote Servlet that filters the JDBC code (configuration & security) before passing it to the MySql JDBC Driver. The result is sent you back through HTTP. There are some free software that use this technique. Just Google " Android JDBC Driver over HTTP

You can directly connect to PostgreSQL (or any database) using the JDBC driver for it. However, it’s highly irregular and insecure to open a database up to be accessed that way on a public network. You’d generally have a web application between the mobile app and the database and use RESTful services instead.