Hey guys,
I´m thinking about what exactly is the differenz between Bi applications like Qlik compare whit normal application with database queries from for example sql.
When I´m on amazon website there i become several products with detail information or videos. I think that the data volume is very big. But the responds time is extremly fast. And this, I think is only SQL?! And they don´t need ETL´s or special servers like Qlik
There are also websites which deliver real time Informations...
I hope anyone can give me i short explanation or an easy example.
Thank you
