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Spring DB Part 2 - Data Access Utilization Technology

You can utilize and implement the database data access technologies required for backend development. You will understand the principles and structure of Spring DB access technologies and grow into a more in-depth backend developer.

(5.0) 669 reviews

16,875 learners

Level Basic

Course period Unlimited

Spring
Spring
MVC
MVC
spring-jpa
spring-jpa
JPA
JPA
querydsl
querydsl
Spring
Spring
MVC
MVC
spring-jpa
spring-jpa
JPA
JPA
querydsl
querydsl

Reviews from Early Learners

Reviews from Early Learners

5.0

5.0

gusdn85554

98% enrolled

Hello, Younghan! I started studying in July of last year, and after 1 year and 4 months, I finally listened to all of Younghan's lectures (except for the boot lecture). While listening to each lecture, I decided to listen to DB Part 2 and write a proper course review, and I'm finally able to write one. When I was feeling lost studying development as a non-major, I think I was able to grow by listening to Younghan's lectures. I worked on several projects through the lectures, and studied the CS I lacked through study. I will tell you about the characteristics of Younghan's lectures, who listened to all of Spring and Jpa's lectures. Let me tell you about the characteristics of Younghan's lectures. In order to learn the 5 steps, he teaches you step by step from step 1. If you know step 5 without knowing steps 1-3, if you learn steps 1-3 through the lectures, you will know why step 5 came out like this. I always listened to it without knowing, so I was always amazed when I saw the code evolving, thinking, "Technology has developed this much." (The reason there can be new technologies is because there are technologies from the past.) And I think that it is more effective to watch Younghan's lectures multiple times. For example, if you listen to the Spring Basics lecture, then the Spring MVC lecture, and then listen to the Spring Basics lecture again, your perspective will be broader than when you first listened to it. That's why I think I listened to JPA Basics 2-3 times (because it's difficult). For those of you who are considering Younghan's lectures, I hope you read this article and think about it. Oh, and lastly, thank you so much for the supporters' QnA answers! Whenever I didn't know something, I always solved it by Googling or QnA. Good luck to you all. Thank you for reading the long article.

5.0

선한영향력주는개발자되기

100% enrolled

Hello, Professor. I finished this lecture as well. I followed the roadmap for about a year, listening to lectures after work and on weekends, but now only the last chapter of the grand finale is left. I am so grateful that you always explain the background of the technology and why it is used so that anyone can understand it, and try to convey at least one more thing. Sometimes I see the professor's computer time while watching the lecture. Sometimes it is a number, and sometimes it is a clock shape, so I thought that he was hiding it on purpose. Hahaha. Anyway, watching you film lectures at various times from early evening to dawn, I often reflected on myself, thinking, "The professor is filming such great lectures so diligently, but am I working that hard?" You provided such great lectures and gave me generous advice as a senior developer, so it was a year of time where I was able to gain motivation not only for technical learning but also for life. I think I will be able to maintain this system well and develop happily in the future. Thank you.

5.0

웃자

100% enrolled

Honestly, those who don't know the contents of Spring DB 1 and 2 are building a tower on top of their thoughts. If you don't know even one thing about the table of contents, definitely listen to it! Listen twice

What you will gain after the course

  • Internal principles of using a database through Spring

  • Various ways to use a DB through Spring

  • Spring DB Access Technology

Essential Spring Data Access Technologies for Backend Developers Part 2
Spring Data Access Technologies Part.2

📣 Please check!
This course is the 7th lecture in the Java Spring Complete Mastery Series. Please check the Spring Complete Mastery Roadmap by Young-han Kim, the youngest Technical Director at Woowa Brothers, first.
• Roadmap Link: https://www.inflearn.com/roadmaps/373 (Click to go)

Young-han Kim's Spring DB
Mastering Data Access Technologies

To develop backend web applications properly, you must master two major pillars: HTTP-based MVC and DB-based data access technology. Since we have completed HTTP and Spring MVC through the previous lectures, we must now complete the remaining pillar: Spring DB data access technology.

✅ Please check the prerequisite knowledge.

Please check if you have understood the principles and structure of Spring DB through the previous lecture, <Spring DB Part 1> .

1. Understanding the basic principles of Spring data access technology
2. Developing directly with code used in practice

Through the Spring DB Part 1 lecture, I have understood the core principles and structures of DB access technologies. In this Spring DB Part 2, we will build upon the foundation of Part 1 to learn various practical application techniques essential for the field. Part 2 is largely divided into three sections.

1) Understanding Various Data Access Technologies

You will learn various data access technologies commonly used in practice, such as JdbcTemplate, MyBatis, JPA, Spring Data JPA, and Querydsl, by progressively developing them through practical examples. Through this process, you can naturally understand why each technology is necessary and their respective strengths and weaknesses while developing the code.

2) Data Access Technologies and Testing

Data access technologies are ultimately used for the purpose of managing data in a database. Therefore, it is necessary to verify whether the data access technology can properly store and retrieve data in an actual database. In this lecture, I will explain step-by-step the best practices for testing in scenarios involving database integration.

3) Deep Understanding of Spring Transactions

In Spring DB Part 1, we explored why the transaction features provided by Spring are necessary and how they work internally. In this session, we will study Spring transactions in great depth and learn how to apply them in practical scenarios.

  • Practical precautions when using Transaction AOP
  • Various options of Spring Transaction
  • Exception handling and the internal principles of how Spring transactions are committed and rolled back
  • Transaction propagation options and internal operation mechanisms

Course Objectives

  • Goal: The goal of this course is to master the extensive DB data access technologies required when developing practical backend applications.
  • From Basics to Practical Application: Although it contains a lot of content for practical development, it is structured step-by-step so that developers without experience in web application development can also adapt. For your information, you should complete Spring DB Part 1 before studying Spring DB Part 2.
  • Practical Example-Oriented: You will naturally learn the data access technologies required for developing backend applications with Spring through practical examples, and I will pass on industry best practices.
  • Conciseness: Outdated features not used in practice have been boldly excluded. The explanation focuses on content primarily used in modern practical applications.

Course Content

Data Access Technology - JdbcTemplate

Spring's JdbcTemplate is a great choice when using SQL directly. This technology helps you use JDBC very conveniently. It also handles most of the repetitive tasks that occur when using JDBC directly.
* Developers only need to write the SQL, define the parameters to be passed, and map the response values.
* By applying JdbcTemplate to a real-world web application, you will understand the pros and cons of this technology.

Data Access Technology - MyBatis

MyBatis provides more features than the previously explained JdbcTemplate. Compared to JdbcTemplate, the most attractive aspects of MyBatis are that it allows you to conveniently write SQL in XML and makes writing dynamic queries very easy. In this lecture, you will understand the pros and cons of this technology by directly applying MyBatis to a functioning web application through code.

Data Access Technology - JPA

Spring and JPA are the core technologies of the Java enterprise market. While Spring provides various features across the entire application, including the DI container, JPA provides ORM data access technology. JPA is as vast as Spring and requires a significant amount of learning, but once mastered, it can provide a massive boost in productivity for data access technology. Here, we will explore the basic functions of these technologies, the pros and cons of why they should be used, and the overall big picture.

Data Access Technology - Spring Data JPA

Spring Data JPA is a technology that helps you use JPA more conveniently. Simply put, it provides all the basic CRUD functionalities, allowing developers to revolutionary reduce the amount of code they need to write. In the lecture, you will understand the pros and cons of this technology by applying Spring Data JPA directly to a real-working web application through code.

Data Access Technology - Querydsl

JPA makes it difficult to handle complex or dynamic queries. Using Querydsl allows you to solve these problems very conveniently. It is a highly recommended technology that is essential if you use JPA in practice. In the lecture, you can understand the pros and cons of this technology by applying Querydsl directly to a working web application through code.

Data Access Technology - Testing

Data access technology is ultimately used for the purpose of managing data in a database. Therefore, it is necessary to verify whether the data access technology can properly store and retrieve data in an actual database. In this lecture, I will explain step-by-step the best practices for testing in a database-integrated environment. For example, I will explain how to configure tests that connect to a database and explore through code how @Transactional and embedded mode databases operate.

Understanding Spring Transactions

In DB Part 1, we explored why the transaction features provided by Spring are necessary and the internal principles of how they work. In this session, we will take an in-depth look at the various features Spring Transaction offers, including practical precautions when using Spring Transaction AOP, various Spring Transaction options, and the internal principles of how Spring transactions are committed or rolled back when an exception occurs.

Spring Transaction Propagation

We cover Spring's transaction propagation in great depth. You will understand why transaction propagation is necessary and explore various propagation options, exception handling based on those options, and important precautions when using transaction propagation in practical applications.

A word from the
instructor, Younghan Kim

Backend developers must master two major pillars: MVC and DB access technology. I will help you complete these two pillars and grow into a solid backend developer. Thank you.

Lecture Order

Related Roadmap

Spring Complete Mastery Series 
Start Spring the smart way, from core principles to practical application
Spring Boot + JPA Practical Mastery 
Learn by building web apps with the latest practical technologies  Advanced Practical Stage 

Recommended for
these people

Who is this course right for?

  • Developers who want to access databases and manage data through Spring

  • Aspiring developer

  • Working developers who want to gain a deep understanding of Spring DB access technologies

  • A developer who wants to create a web application with Spring

Need to know before starting?

  • Java language

  • Spring Basic Knowledge

  • DB Basic Knowledge

Hello
This is yh

583,633

Learners

40,550

Reviews

9,078

Answers

5.0

Rating

26

Courses

My goal is to provide education so that you can become a truly practical and competent developer.

 

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Curriculum

All

88 lectures ∙ (13hr 59min)

Course Materials:

Lecture resources
Published: 
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Reviews

All

669 reviews

5.0

669 reviews

  • impati0716님의 프로필 이미지
    impati0716

    Reviews 11

    ∙

    Average Rating 5.0

    5

    100% enrolled

    I'm learning a lot. Thank you always.

    • yh
      Instructor

      Mr. Choi Jun-young, thank you for listening so diligently. I also feel rewarded. Thank you.

  • gusdn855542301님의 프로필 이미지
    gusdn855542301

    Reviews 2

    ∙

    Average Rating 5.0

    5

    98% enrolled

    Hello, Younghan! I started studying in July of last year, and after 1 year and 4 months, I finally listened to all of Younghan's lectures (except for the boot lecture). While listening to each lecture, I decided to listen to DB Part 2 and write a proper course review, and I'm finally able to write one. When I was feeling lost studying development as a non-major, I think I was able to grow by listening to Younghan's lectures. I worked on several projects through the lectures, and studied the CS I lacked through study. I will tell you about the characteristics of Younghan's lectures, who listened to all of Spring and Jpa's lectures. Let me tell you about the characteristics of Younghan's lectures. In order to learn the 5 steps, he teaches you step by step from step 1. If you know step 5 without knowing steps 1-3, if you learn steps 1-3 through the lectures, you will know why step 5 came out like this. I always listened to it without knowing, so I was always amazed when I saw the code evolving, thinking, "Technology has developed this much." (The reason there can be new technologies is because there are technologies from the past.) And I think that it is more effective to watch Younghan's lectures multiple times. For example, if you listen to the Spring Basics lecture, then the Spring MVC lecture, and then listen to the Spring Basics lecture again, your perspective will be broader than when you first listened to it. That's why I think I listened to JPA Basics 2-3 times (because it's difficult). For those of you who are considering Younghan's lectures, I hope you read this article and think about it. Oh, and lastly, thank you so much for the supporters' QnA answers! Whenever I didn't know something, I always solved it by Googling or QnA. Good luck to you all. Thank you for reading the long article.

    • yh
      Instructor

      gusdn85554, you understand it step by step very well. And as you said, reviewing is also very important. I'm rooting for you!

  • ho2ast님의 프로필 이미지
    ho2ast

    Reviews 14

    ∙

    Average Rating 5.0

    5

    100% enrolled

    Hello, Professor. I finished this lecture as well. I followed the roadmap for about a year, listening to lectures after work and on weekends, but now only the last chapter of the grand finale is left. I am so grateful that you always explain the background of the technology and why it is used so that anyone can understand it, and try to convey at least one more thing. Sometimes I see the professor's computer time while watching the lecture. Sometimes it is a number, and sometimes it is a clock shape, so I thought that he was hiding it on purpose. Hahaha. Anyway, watching you film lectures at various times from early evening to dawn, I often reflected on myself, thinking, "The professor is filming such great lectures so diligently, but am I working that hard?" You provided such great lectures and gave me generous advice as a senior developer, so it was a year of time where I was able to gain motivation not only for technical learning but also for life. I think I will be able to maintain this system well and develop happily in the future. Thank you.

    • yh
      Instructor

      Dear Seonhanyeonggwangryeok Developer, thank you for always listening to me diligently and leaving frequent course reviews. Since you said you've been together for a year, I feel like I've done something together, so it's more rewarding. I've been spending more time lately, so I can focus more on the lectures, thanks to the students who sometimes talk to me^^

  • ballgaveship1247님의 프로필 이미지
    ballgaveship1247

    Reviews 13

    ∙

    Average Rating 5.0

    5

    100% enrolled

    Honestly, those who don't know the contents of Spring DB 1 and 2 are building a tower on top of their thoughts. If you don't know even one thing about the table of contents, definitely listen to it! Listen twice

    • yh
      Instructor

      Thank you so much for listening so diligently, Mr. Uzza!!

  • chlxogns928264님의 프로필 이미지
    chlxogns928264

    Reviews 17

    ∙

    Average Rating 5.0

    5

    100% enrolled

    It's awesome :) It's the best lecture. I learned a lot while listening to the lecture and I'm using it well in my work. I'm planning to listen to the practical lecture as well, and I'm looking forward to the Spring Boot lecture.

    • yh
      Instructor

      Thank you, Hoon, for listening so intently. Fighting until the end.

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Learn Springboot + iOS RestAPI Bulletin Board Building Faster Than AnyoneCourse Thumbnail

Learn Springboot + iOS RestAPI Bulletin Board Building Faster Than Anyone

Neo

Learning React 19 with Spring Boot API Server through CodingCourse Thumbnail

Learning React 19 with Spring Boot API Server through Coding

zk202308a5410

Completing an integration project between an API server built with Spring Boot (ver 3.4.x) and React 19 (with TypeScript)! Applying front-end to a back-end portfolio! A course written for working professionals (not a beginner-level course).

Intermediate

Intermediate

React, TypeScript, Spring Boot

Learning React 19 with Spring Boot API Server through CodingCourse Thumbnail

Learning React 19 with Spring Boot API Server through Coding

zk202308a5410

[From JSP to Spring Boot] The Unwavering Path to SpringBootCourse Thumbnail

[From JSP to Spring Boot] The Unwavering Path to SpringBoot

youngcodikimssam

Did you give up while studying Spring? Even complete beginners new to coding and non-majors can make it from JSP to Spring Boot without giving up - we'll open the path to Spring Boot for you.

Beginner

Beginner

Java, JSP, TDD

[From JSP to Spring Boot] The Unwavering Path to SpringBootCourse Thumbnail

[From JSP to Spring Boot] The Unwavering Path to SpringBoot

youngcodikimssam

Learn Springboot + Android RestAPI Board Creation Faster Than AnyoneCourse Thumbnail

Learn Springboot + Android RestAPI Board Creation Faster Than Anyone

Neo

Learn Springboot + Android(Compose) RestAPI Board Creation Faster Than Anyone Develop a CRUD server with Springboot and create your own board with Android!!

Beginner

Beginner

Android, Kotlin, Spring Boot

Learn Springboot + Android RestAPI Board Creation Faster Than AnyoneCourse Thumbnail

Learn Springboot + Android RestAPI Board Creation Faster Than Anyone

Neo

IntelliJ IDEA Conf 2025Course Thumbnail

IntelliJ IDEA Conf 2025

JetBrains

IntelliJ IDEA Conf 2025 is an annual online conference hosted by JetBrains that provides valuable sessions for Java and Kotlin developers. It covers various topics including AI adoption, Spring Boot, Gradle, Kafka, database management, and also shares insights on cloud integration, secure coding, developer performance improvement, and advanced development techniques. This conference is open to both professional and beginner developers, offering opportunities to explore the latest technologies along with productivity tips for writing high-quality code faster.

Basic

Basic

Java, Spring, Kotlin

IntelliJ IDEA Conf 2025Course Thumbnail

IntelliJ IDEA Conf 2025

JetBrains

[React Part 1] Learning React by Building and ComparingCourse Thumbnail

[React Part 1] Learning React by Building and Comparing

jeonghwan

Master React now. Easiest course to grasp React's features & roles, comparing to pure JS!

Basic

Basic

React, MVC, JavaScript

[React Part 1] Learning React by Building and ComparingCourse Thumbnail

[React Part 1] Learning React by Building and Comparing

jeonghwan

[MMORPG Game Development Series with C# and Unity] Extra: ASP.NET Core AdvancedCourse Thumbnail

[MMORPG Game Development Series with C# and Unity] Extra: ASP.NET Core Advanced

Rookiss

This lecture will delve deeper into the various features of ASP.NET Core. You will practice what you have learned through Facebook authentication practice.

Intermediate

Intermediate

ASP.NET Core, MVC

[MMORPG Game Development Series with C# and Unity] Extra: ASP.NET Core AdvancedCourse Thumbnail

[MMORPG Game Development Series with C# and Unity] Extra: ASP.NET Core Advanced

Rookiss

$77.00