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Konrad Pilch2,435 Points
What is Information Systems used in real word? How does it differs from a normal database? what databases could it use and how are they structured?
Andy good explanation apart from wiki? please
DB: Most companies use SQL databases (Structured Query Language) such as mySQL or PostgreSQL. However noSQL DB's such as MongoDB are taking over as they are object based (JS)(jSON) which makes them super fast and scalable.
It doesn't mean that you can't still use SQL databases for larger apps. In fact some of the biggest companies do use mySQL and others use MongoDB
Depending on your needs you will have to think of what DB to use but still, knowledge of JS, jSON and SQL is a great bonus. Say that your app will be a real time flight system, you might want to use (Real Time) Database such as Firebase which writes and retrieves information on the fly.
Not sure if that answer is what you're looking for. If not, forgive me, I tried to help :)
altuğ ankarali7,394 Points
Actually "Information Systems" means not only database. Database is just a part of information system. You asked for apart from wikipedia but wiki is really good example to information system in real world :) It serves, collect, validate and store the information. In brief information systems uses databases in order to store data but which one is good what is the difference between them?
As far as I know there is two major database type;
Its older than me :D In real world most of the websites use it because wordpress like content management systems uses sql. But big internet companies are tend to use nosql these days because of performance but a well designed sql database can perform better than nosql.