Differences & Similarities Between Programming Paradigms [duplicate]

Answer 1

Here's my take:

• Functional programming means writing functions that take in data and operate on it. You build up large applications by assembling functions.
• Object-oriented programming encapsulated data and its operators together into a single component that maps onto mental models well. You build up large applications out of collaborating objects.
• Declarative programming (e.g., SQL) separates what is done from how it's done. You tell a relational database what you'd like it to do and leave the driving to the query engine.