PostgreSQL Aggregate Functions in Hindi | COUNT, SUM, AVG, MIN, MAX, GROUP BY & HAVING

🔥 PostgreSQL Aggregate Functions in Hindi | COUNT, SUM, AVG, MIN, MAX, GROUP BY & HAVING 🚀 *Learn PostgreSQL Aggregate Functions with Real-World Examples | Complete SQL Tutorial in Hindi* Welcome back to *Dev With Pradeep!* 👨‍💻 In this video, we will learn PostgreSQL Aggregate Functions from basic to advanced using practical SQL queries and a real-world E-Commerce Sales Analysis project. If you're learning PostgreSQL, SQL, Database Management, Java Backend Development, or preparing for SQL interviews, this tutorial will help you understand how aggregate functions work in real applications. 📌 *What You Will Learn in This Video:* ✅ What are Aggregate Functions in PostgreSQL? ✅ COUNT – Count total records in a table ✅ SUM – Calculate total sales and revenue ✅ AVG – Find average values ✅ MIN – Find the minimum value ✅ MAX – Find the maximum value ✅ GROUP BY – Group records based on columns ✅ HAVING – Filter grouped results ✅ WHERE vs HAVING – Understand the difference ✅ COUNT DISTINCT – Count unique values ✅ FILTER Clause – Conditional aggregation ✅ STRING_AGG and ARRAY_AGG ✅ Real-world E-Commerce Sales Analysis ✅ PostgreSQL Interview Questions and Practical Examples --- 💻 Real-World Project Covered In this tutorial, we create an E-Commerce Orders table in PostgreSQL and perform different aggregate operations. We will solve practical business questions such as: How many orders have customers placed? What is the total revenue generated? What is the average order value? Which product category generates the highest revenue? How can we calculate category-wise sales? How do GROUP BY and HAVING work together? How can we find the second-highest order value? These examples are useful for Java Spring Boot Developers, Backend Developers, Data Analysts, SQL Beginners, and Software Engineers. --- 📚 PostgreSQL Complete Tutorial Series in Hindi On **Dev With Pradeep**, you can learn PostgreSQL step by step, including: 🔹 PostgreSQL Introduction and Installation 🔹 Database, Schema, Tables and Data Types 🔹 UUID and JSONB in PostgreSQL 🔹 PostgreSQL Constraints 🔹 NULL vs Empty String vs Zero 🔹 PostgreSQL Joins Explained 🔹 LIKE, ILIKE, IN, NOT IN and BETWEEN 🔹 ORDER BY, LIMIT and OFFSET 🔹 UPDATE, DELETE and RETURNING 🔹 Relationships Between Tables 🔹 Aggregate Functions, GROUP BY and HAVING 🎯 *More Backend Development Tutorials:* ☕ Core Java and Java 8 Features 🍃 Spring Boot Development 🔐 Spring Security and JWT Authentication ⚙️ Microservices Architecture 🌐 REST API Development 🔄 Feign Client and WebClient 🛡️ Circuit Breaker with Resilience4j 🗄️ Hibernate and JPA 🚀 Backend Development Interview Preparation --- 🎯 Who Should Watch This Video? ✔️ SQL and PostgreSQL Beginners ✔️ Java and Spring Boot Developers ✔️ Backend Developers ✔️ Computer Science Students ✔️ Freshers Preparing for Technical Interviews ✔️ Developers Learning Database Queries --- 📝 Practice Assignment Write a PostgreSQL query to calculate the average order value for each product category, considering only delivered orders. Sort the results from highest to lowest average order value. 💬 Share your SQL query in the comments! --- 🔔 Subscribe to Dev With Pradeep If you want to become a better Backend Developer and master Java, Spring Boot, Microservices, PostgreSQL and real-world development concepts, subscribe to **Dev With Pradeep**. 👍 Like this video if you found it helpful. 💬 Comment your doubts and questions. 📤 Share this tutorial with your developer friends. 🔔 Subscribe and turn on notifications for upcoming tutorials. *Learn | Code | Practice | Grow 🚀* --- 🔍 Topics Covered PostgreSQL Aggregate Functions in Hindi, SQL Aggregate Functions Tutorial, COUNT Function in PostgreSQL, SUM Function in SQL, AVG Function in PostgreSQL, MIN MAX Functions, GROUP BY in PostgreSQL, HAVING Clause in SQL, WHERE vs HAVING, PostgreSQL FILTER Clause, SQL Interview Questions, PostgreSQL Tutorial for Beginners, PostgreSQL Real World Examples, SQL Queries for Backend Developers. #️⃣ Hashtags #PostgreSQL #SQLTutorial #AggregateFunctions #DevWithPradeep #SQLInHindi