Learning Spring Boot from Zero to Cloud: Part 36 – JdbcTemplate – Generated Keys!

Welcome to another episode in our Spring Boot Series series!

In this video, you’ll learn how to insert data using JdbcTemplate and immediately retrieve the auto-generated key — a common task when working with relational databases.

🎯 Topics covered:

• Why you need to retrieve generated keys
• Introduction to GeneratedKeyHolder and PreparedStatement
• Step-by-step code walkthrough in Java
• Visual flow diagram (Service → Repository → DB)
• Real-world use case (return the id after inserting a user)

🔧 Technologies used:

• Spring Boot
• JdbcTemplate
• SQL Databases (PostgreSQL / MySQL / Oracle)