Web application – a program with a two-tier “client-server” architecture. The client interacts with the user interface (UI/UX) through web-browser pages.
Database programming languages
The first databases appeared a long time ago, as soon as the need to process large amounts of information and select groups of records according to certain characteristics appeared.
Trendy or popular programming languages, and out of fashion or active use
Why do some languages become fashionable and others are somehow forgotten? Firstly, the change of technologies.