PostgreSQL Functions Explained: Create, Call & Manage Functions | Dev Portal

Welcome back to Dev Portal. In this tutorial, we’ll dive deep into Functions in PostgreSQL. It is a powerful feature for data manipulation, business logic implementation, and custom calculations. Whether you are a beginner or experienced developer, this tutorial will help you understand how to use PostgreSQL functions effectively. In this video, we’ll explore: - Difference Between Functions & Procedures - How to Create Functions in PostgreSQL - Calling Functions Using SQL - Functions with Multiple Parameters - Returning Tables from Functions - Modifying & Dropping Functions - Real-World Use Cases of PostgreSQL Functions GitHub Repo with Sample Code: https://github.com/nakulmitra/database-postgresql/blob/master/notes/functions.md Timestamps: 00:00 - Introduction 00:28 - Functions vs. Procedures Recap 01:08 - Basic Syntax of Functions in PostgreSQL 01:57 - Creating a Function (Example: Annual Salary Calculation) 03:07 - Calling Functions Using SQL Queries 04:20 - Functions with Multiple Parameters (Example: Bonus Calculation) 05:22 - Functions Returning Tables (Example: Employees with High Salary) 09:55 - Modifying & Dropping Functions in PostgreSQL 13:09 - Use Cases & Best Practices for Functions 14:29 - Summary & Next Steps Other Videos & Series: - PostgreSQL Stored Procedures Explained: https://youtu.be/OqrwTHCFItA - Case Statements in SQL: https://youtu.be/5M8SoHw10Fk - Java Projects: https://www.youtube.com/playlist?list=PLKrxcqbQdCgaAtUObt11xA63eO7kx4Epj - Java Interview Series: https://www.youtube.com/playlist?list=PLKrxcqbQdCgZDkAiCs6uGFK7yzhFkjNJU Please like, comment and subscribe to @DevPortal2114 for more PostgreSQL and Java tutorials! Follow me on LinkedIn: https://www.linkedin.com/in/nakul-mitra-microservices-spring-boot-java-postgresql/ Instagram: https://www.instagram.com/nakul_mitra/ Keywords: PostgreSQL Functions PostgreSQL Function Tutorial How to Create Functions in PostgreSQL PostgreSQL Functions vs Procedures PostgreSQL Function Return Table PostgreSQL Function Parameters PostgreSQL Function vs Stored Procedure How to create and call functions in PostgreSQL PostgreSQL stored function tutorial for beginners PostgreSQL functions with multiple parameters How to modify and drop functions in PostgreSQL PostgreSQL me Function kaise banaye How to overcome from function does not exist error during drop function. How to recreate function in PostgreSQL #PostgreSQL #databasetutorial #sqlfunctions #postgresqltutorial #sqlqueries #databaseprogramming #sqltutorial #sqlforbeginners #placements #collegeplacement #techtutorial #techjobs #softwaredevelopment #databasedevelopment #databasedesign