This page is just a general summary of how all the applications work together
with one or more databases.
Databases are the root or base of most Internet-, Desktop-, Android- and Web
Services Applications. In most cases the actual Application shows the data from
a database that works in the back ground in a very controlled way that makes
sense to the user. It also enables the user to manipulate such as add, edit or
delete data on the database, and what the user can do or see or cannot do or
see is determined by the application design.
So Databases are almost used in all Applications. Sometimes we use the same
database on different applications simultanliously. For example we have a Web
Site and an Android Application and we use the same database. Often when we use
a Web Site and Android Application, we don't connect the Android Application
straight to the database, but we connect the Android Application to a web
service Program on the Web Server, which then connects to the same database as
the Web Site.
Databases can also be on the local Application. So for example if you have a
Desktop Application, or an Android Smart Phone Application, the installation of
the Application may also install a local database. Often two databases are
used, a local database and an external database, with the external database
often being the same as the one running on the web server.
Show data from a Database in a controlled environment.
Add new records onto a database in a controlled environment.
Delete records from a database in a controlled environment.
Edit records in a database in a controlled environment.