What is the difference between a web application and a client/server application?

Question

I took this from another question I had.

Under appropriate uses for sqlite it has:

Situations Where SQLite Works Well

•Websites

SQLi

Answer 1

There are a few differences of note:

Web Applications assume the client is a web browser and that communication between the client and server is stateless (HTTP). It also tends to assume that the client is "thin" and very little processing of information is done in the browser.

Client-Server Applications assume the client is a "thick" client and that communication between the client and server maintains state (this isn't necessarily true). Communication can be pretty much any protocol. The old-fashioned client-server, or 2-tier application does have each client connect to the database directly - I would advise against this for various reasons, number one being security. This is probably what the source you posted meant when saying SQLite isn't appropriate.

A 3+tier type of application could still have a with-state client-server communication, but the middle-tier would handle the actual database communication. In this case, latency on the network isn't important and SQLite could work (because it is more like a web app).