Learning Spring Boot from Zero to Cloud: Part 22 – JdbcTemplate – Query variants

In this video, you’ll learn all the powerful ways to fetch data using Spring’s JdbcTemplate — from grabbing a single value to handling full lists of results! 🎯 Whether you’re building a REST API, a dashboard, or doing backend magic, this guide will level up your database game. 💡

🔥 What you’ll learn:
✅ queryForObject – Get a single value (perfect for counts or lookups)
✅ queryForObject + RowMapper – Map a single row to an object
✅ queryForList – Get a list of single-column values
✅ query – Fetch multiple rows into objects
✅ queryForMap – One row, many columns (great for quick inspections)
✅ queryForList with Maps – Multiple rows, raw data style

💡 Real-world use cases included! Perfect for devs working on:

• Dashboards 📊
• APIs 🌐
• Admin panels 🛠
• Reports 📁
• Dynamic UIs 🎨

⏱️ Timestamps
00:00 – Introduction
00:46 – queryForObject Single
01:51 – queryForObject and RowMapper
02:48 – queryForList
04:33: – query
05:09 – queryForMap
08:07 – queryForList with Map
09:00 – presentation summary
10:59 – spring boot code