diff --git a/persistence-modules/pom.xml b/persistence-modules/pom.xml
index 9eb7ca1f1d..3569f83d7b 100644
--- a/persistence-modules/pom.xml
+++ b/persistence-modules/pom.xml
@@ -85,6 +85,7 @@
         <module>spring-data-jpa-query-3</module>
         <module>spring-data-jpa-repo</module>
         <module>spring-data-jpa-repo-2</module>
+		<module>spring-data-jpa-repo-4</module>
         <module>spring-data-jdbc</module>
         <module>spring-data-keyvalue</module>
         <module>spring-data-mongodb</module>
diff --git a/persistence-modules/spring-data-jpa-repo-2/README.md b/persistence-modules/spring-data-jpa-repo-2/README.md
index 12eeddae7f..23134ec02d 100644
--- a/persistence-modules/spring-data-jpa-repo-2/README.md
+++ b/persistence-modules/spring-data-jpa-repo-2/README.md
@@ -9,6 +9,4 @@
 - [Difference Between JPA and Spring Data JPA](https://www.baeldung.com/spring-data-jpa-vs-jpa)
 - [Differences Between Spring Data JPA findFirst() and findTop()](https://www.baeldung.com/spring-data-jpa-findfirst-vs-findtop)
 - [Difference Between findBy and findAllBy in Spring Data JPA](https://www.baeldung.com/spring-data-jpa-find-by-vs-find-all-by)
-- [Unidirectional One-to-Many and Cascading Delete in JPA](https://www.baeldung.com/spring-jpa-unidirectional-one-to-many-and-cascading-delete)
-- [TRUNCATE TABLE in Spring Data JPA](https://www.baeldung.com/spring-data-jpa-truncate-table)
 - More articles: [[<-- prev]](../spring-data-jpa-repo)
diff --git a/persistence-modules/spring-data-jpa-repo-4/README.md b/persistence-modules/spring-data-jpa-repo-4/README.md
new file mode 100644
index 0000000000..a8afbbe733
--- /dev/null
+++ b/persistence-modules/spring-data-jpa-repo-4/README.md
@@ -0,0 +1,7 @@
+## Spring Data JPA - Repositories
+
+### Relevant Articles: 
+
+- [Unidirectional One-to-Many and Cascading Delete in JPA](https://www.baeldung.com/spring-jpa-unidirectional-one-to-many-and-cascading-delete)
+- [TRUNCATE TABLE in Spring Data JPA](https://www.baeldung.com/spring-data-jpa-truncate-table)
+- More articles: [[<-- prev]](../spring-data-jpa-repo-3)
diff --git a/persistence-modules/spring-data-jpa-repo-4/pom.xml b/persistence-modules/spring-data-jpa-repo-4/pom.xml
new file mode 100644
index 0000000000..c823391d9f
--- /dev/null
+++ b/persistence-modules/spring-data-jpa-repo-4/pom.xml
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-data-jpa-repo-4</artifactId>
+    <name>spring-data-jpa-repo-4</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-2</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>javax.persistence</groupId>
+            <artifactId>javax.persistence-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.querydsl</groupId>
+            <artifactId>querydsl-apt</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.querydsl</groupId>
+            <artifactId>querydsl-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>${guava.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>com.mysema.maven</groupId>
+                <artifactId>apt-maven-plugin</artifactId>
+                <version>1.1.3</version>
+                <executions>
+                    <execution>
+                        <phase>generate-sources</phase>
+                        <goals>
+                            <goal>process</goal>
+                        </goals>
+                        <configuration>
+                            <outputDirectory>${project.build.directory}/generated-sources</outputDirectory>
+                            <processor>com.querydsl.apt.jpa.JPAAnnotationProcessor</processor>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.bsc.maven</groupId>
+                <artifactId>maven-processor-plugin</artifactId>
+                <version>3.3.3</version>
+                <executions>
+                    <execution>
+                        <id>process</id>
+                        <goals>
+                            <goal>process</goal>
+                        </goals>
+                        <phase>generate-sources</phase>
+                        <configuration>
+                            <outputDirectory>${project.build.directory}/generated-sources</outputDirectory>
+                            <processors>
+                                <processor>org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor</processor>
+                            </processors>
+                        </configuration>
+                    </execution>
+                </executions>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.hibernate</groupId>
+                        <artifactId>hibernate-jpamodelgen</artifactId>
+                        <version>5.6.11.Final</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/truncate/EntityManagerRepository.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/truncate/EntityManagerRepository.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/truncate/EntityManagerRepository.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/truncate/EntityManagerRepository.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/truncate/JdbcTemplateRepository.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/truncate/JdbcTemplateRepository.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/truncate/JdbcTemplateRepository.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/truncate/JdbcTemplateRepository.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/truncate/MyEntity.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/truncate/MyEntity.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/truncate/MyEntity.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/truncate/MyEntity.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/truncate/MyEntityRepository.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/truncate/MyEntityRepository.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/truncate/MyEntityRepository.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/truncate/MyEntityRepository.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/truncate/TruncateSpringBootApplication.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/truncate/TruncateSpringBootApplication.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/truncate/TruncateSpringBootApplication.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/truncate/TruncateSpringBootApplication.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/Article.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/Article.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/Article.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/Article.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/ArticleRepository.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/ArticleRepository.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/ArticleRepository.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/ArticleRepository.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/ArticleService.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/ArticleService.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/ArticleService.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/ArticleService.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/CascadingDeleteApplication.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/CascadingDeleteApplication.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/CascadingDeleteApplication.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/CascadingDeleteApplication.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/Comment.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/Comment.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/Comment.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/Comment.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/CommentRepository.java b/persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/CommentRepository.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/CommentRepository.java
rename to persistence-modules/spring-data-jpa-repo-4/src/main/java/com/baeldung/spring/data/persistence/unidirectionalcascadingdelete/CommentRepository.java
diff --git a/persistence-modules/spring-data-jpa-repo-4/src/main/resources/application.properties b/persistence-modules/spring-data-jpa-repo-4/src/main/resources/application.properties
new file mode 100644
index 0000000000..db4837d8d2
--- /dev/null
+++ b/persistence-modules/spring-data-jpa-repo-4/src/main/resources/application.properties
@@ -0,0 +1,11 @@
+spring.datasource.url=jdbc:h2:mem:db;DB_CLOSE_DELAY=-1
+spring.datasource.username=sa
+spring.datasource.password=sa
+
+spring.jpa.properties.hibernate.globally_quoted_identifiers=true
+logging.level.com.baeldung.spring.data.persistence.search=debug
+
+spring.jpa.show-sql=true
+logging.level.org.hibernate.SQL=DEBUG
+logging.level.org.hibernate.type.descriptor.sql.BasicBinder=TRACE
+spring.jpa.properties.hibernate.format_sql=true
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/test/java/com/baeldung/spring/data/persistence/deletionCascading/ArticleRepositoryIntegrationTest.java b/persistence-modules/spring-data-jpa-repo-4/src/test/java/com/baeldung/spring/data/persistence/deletionCascading/ArticleRepositoryIntegrationTest.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/test/java/com/baeldung/spring/data/persistence/deletionCascading/ArticleRepositoryIntegrationTest.java
rename to persistence-modules/spring-data-jpa-repo-4/src/test/java/com/baeldung/spring/data/persistence/deletionCascading/ArticleRepositoryIntegrationTest.java
diff --git a/persistence-modules/spring-data-jpa-repo-2/src/test/java/com/baeldung/spring/data/persistence/truncate/TruncateIntegrationTest.java b/persistence-modules/spring-data-jpa-repo-4/src/test/java/com/baeldung/spring/data/persistence/truncate/TruncateIntegrationTest.java
similarity index 100%
rename from persistence-modules/spring-data-jpa-repo-2/src/test/java/com/baeldung/spring/data/persistence/truncate/TruncateIntegrationTest.java
rename to persistence-modules/spring-data-jpa-repo-4/src/test/java/com/baeldung/spring/data/persistence/truncate/TruncateIntegrationTest.java
diff --git a/persistence-modules/spring-data-jpa-repo-4/src/test/resources/logback-test.xml b/persistence-modules/spring-data-jpa-repo-4/src/test/resources/logback-test.xml
new file mode 100644
index 0000000000..8d4771e308
--- /dev/null
+++ b/persistence-modules/spring-data-jpa-repo-4/src/test/resources/logback-test.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration scan="true" scanPeriod="15 seconds" debug="false">
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>[%d{ISO8601}]-[%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>
\ No newline at end of file