[exec-sql-h2] run sql scripts in H2 (#18697)

Author: sk1418

persistence-modules/spring-boot-persistence-h2-2/src/main/java/com/baeldung/h2execscript/H2ExecScriptDemoApplication.java

@@ -0,0 +1,11 @@
+package com.baeldung.h2execscript;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class H2ExecScriptDemoApplication {
+    public static void main(String... args) {
+        SpringApplication.run(H2ExecScriptDemoApplication.class, args);
+    }
+}

persistence-modules/spring-boot-persistence-h2-2/src/test/java/com/baeldung/h2execscript/H2ExecSqlIntegrationTest.java

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+package com.baeldung.h2execscript;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.List;
+
+import org.junit.jupiter.api.MethodOrderer;
+import org.junit.jupiter.api.Order;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestMethodOrder;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import org.springframework.transaction.annotation.Transactional;
+
+import jakarta.persistence.EntityManager;
+
+@ExtendWith(SpringExtension.class)
+@SpringBootTest(classes = H2ExecScriptDemoApplication.class)
+@ActiveProfiles("h2-exec-sql")
+@Transactional
+@TestMethodOrder(MethodOrderer.OrderAnnotation.class)
+public class H2ExecSqlIntegrationTest {
+
+    @Autowired
+    private EntityManager entityManager;
+
+    @Test
+    void whenUsingRunscriptInJdbcUrl_thenSqlExecuted() {
+        List<String> expectedTaskNames = List.of("Start the application", "Check if data table is filled");
+        List<String> taskNames = entityManager.createNativeQuery("SELECT NAME FROM TASK_TABLE ORDER BY ID")
+            .getResultStream()
+            .map(Object::toString)
+            .toList();
+        assertEquals(expectedTaskNames, taskNames);
+    }
+
+    @Test
+    @Order(1)
+    void whenSpringAutoDetectSchemaAndDataSql_thenSqlExecuted() {
+        List<String> expectedCityNames = List.of("New York", "Hamburg", "Shanghai");
+        List<String> cityNames = entityManager.createNativeQuery("SELECT NAME FROM CITY ORDER BY ID")
+            .getResultStream()
+            .map(Object::toString)
+            .toList();
+        assertEquals(expectedCityNames, cityNames);
+    }
+
+    @Test
+    @Order(2)
+    void whenRunscriptInNativeQuery_thenSqlExecuted() {
+        entityManager.createNativeQuery("RUNSCRIPT FROM 'classpath:/sql/add_cities.sql'")
+            .executeUpdate();
+        List<String> expectedCityNames = List.of("New York", "Hamburg", "Shanghai", "Paris", "Berlin", "Tokyo");
+        List<String> cityNames = entityManager.createNativeQuery("SELECT NAME FROM CITY ORDER BY ID")
+            .getResultStream()
+            .map(Object::toString)
+            .toList();
+        assertEquals(expectedCityNames, cityNames);
+    }
+
+}

persistence-modules/spring-boot-persistence-h2-2/src/test/resources/application-h2-exec-sql.yml

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+spring:
+  datasource:
+    driverClassName: org.h2.Driver
+    url: jdbc:h2:mem:demodb;INIT=RUNSCRIPT FROM 'classpath:/sql/init_my_db.sql'
+    username: sa
+    password:

persistence-modules/spring-boot-persistence-h2-2/src/test/resources/data.sql

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+INSERT INTO CITY (ID, NAME) VALUES (1, 'New York');
+INSERT INTO CITY (ID, NAME) VALUES (2, 'Hamburg');
+INSERT INTO CITY (ID, NAME) VALUES (3, 'Shanghai');

persistence-modules/spring-boot-persistence-h2-2/src/test/resources/schema.sql

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+CREATE TABLE CITY
+(
+    ID   INT PRIMARY KEY ,
+    NAME VARCHAR(255)
+);

persistence-modules/spring-boot-persistence-h2-2/src/test/resources/sql/add_cities.sql

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+INSERT INTO CITY (ID, NAME) VALUES (4, 'Paris');
+INSERT INTO CITY (ID, NAME) VALUES (5, 'Berlin');
+INSERT INTO CITY (ID, NAME) VALUES (6, 'Tokyo');

persistence-modules/spring-boot-persistence-h2-2/src/test/resources/sql/init_my_db.sql

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+CREATE TABLE TASK_TABLE
+(
+    ID   INT PRIMARY KEY,
+    NAME VARCHAR(255)
+);
+
+INSERT INTO TASK_TABLE (ID, NAME) VALUES (1, 'Start the application');
+INSERT INTO TASK_TABLE (ID, NAME) VALUES (2, 'Check if data table is filled');