Do I need to use sqlalchemy if my database was already designed manually?
Using sqlalchemy will help you fetching/inserting data very easy, no matter you designed your db manually, you just need to define your design and then instead of writing multiple lines, you write a line and everything done.
It also help you handle errors and a lot more.
Strongly suggest you to use it.
I am new to flask. I am developing a web application using flask and postgres. I have already designed database. I know sqlalchemy is orm. Do I still need to use sqlalchemy in flask if my database was already designed without sqlalchemy. I have to use that database for fetching and updating values. While going further will sqlalchemy is useful to me? or can I simply use db connector and proceed?