As stated on the following site - What is a Database ? - "A database is an organized collection of structured information, or data, typically stored electronically in a computer system. A database is usually controlled by a database management system (DBMS). Together, the data and the DBMS, along with the applications that are associated with them, are referred to as a database system, often shortened to just database. Data within the most common types of databases in operation today is typically modeled in rows and columns in a series of tables to make processing and data querying efficient. The data can then be easily accessed, managed, modified, updated, controlled, and organized. Most databases use structured query language (SQL) for writing and querying data."
Currently on an internship in Switzerland, I realized that it was really difficult to arrive in a new city where we don't know anyone. At that time, I thought that I would have appreciate to have an application allowing me to have access to a list of people living in a given city who would be willing to answer practical questions or available to help discover the city.
For the user, the use will be similar to a classic social network. He will only have to enter the city of his choice and all the person available to help him will be proposed to him. He will only have to make his choice. For the user, this allows him to get help and a personalized contact in complete security. He will also avoid the "dating site" aspect that some sites, some applications to meet people can have.
This kind of service is offered on Facebook groups as on the following screenshots.
However these groups are usually composed of a very large number of people and it is therefore difficult to get information or personnalized help quickly. An application would make it easier for people living in a given place to get in touch with newcomers.
To implement this, we create a database with our data. We integratethis database in our project and then we look for the data we are interested in. The application would allow us to take out the inhabitants of a city that we choose.