인프런 커뮤니티 질문&답변

학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요.

1. 강의 내용과 관련된 질문을 남겨주세요.
2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요.
(자주 하는 질문 링크: https://bit.ly/3fX6ygx)
3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요.
(질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG)

질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요.
=========================================
[질문 템플릿]
1. 강의 내용과 관련된 질문인가요? (예/아니오)
2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오)
3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오)

[질문 내용]
여기에 질문 내용을 남겨주세요.

QueryDlsApplicationTest.java를 실행하면,

org.hibernate.exception.SQLGrammarException: could not prepare statement [Sequence "HELLO_SEQ" not found; SQL statement:

select next value for hello_seq [90036-214]] [select next value for hello_seq]

at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:64)

at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:56)

at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:108)

at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:187)

at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareStatement(StatementPreparerImpl.java:76)

at org.hibernate.id.enhanced.SequenceStructure$1.getNextValue(SequenceStructure.java:100)

at org.hibernate.id.enhanced.PooledOptimizer.generate(PooledOptimizer.java:72)

at org.hibernate.id.enhanced.SequenceStyleGenerator.generate(SequenceStyleGenerator.java:542)

at org.hibernate.id.IdentifierGenerator.generate(IdentifierGenerator.java:147)

at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:120)

at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:175)

at org.hibernate.event.internal.DefaultPersistEventListener.persist(DefaultPersistEventListener.java:93)

at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:77)

at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:54)

at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:127)

at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:755)

at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:739)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:568)

at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:311)

at jdk.proxy2/jdk.proxy2.$Proxy108.persist(Unknown Source)

at study.querydsl.QuerydslApplicationTests.contextLoads(QuerydslApplicationTests.java:25)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:568)

at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727)

at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)

at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)

at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)

at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)

at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)

at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)

at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)

at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)

at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213)

at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138)

at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)

at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)

at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)

at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)

at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)

at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)

at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)

at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)

at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)

at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)

at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)

at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147)

at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127)

at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90)

at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55)

at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102)

at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54)

at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)

at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)

at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)

at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)

at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57)

at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)

at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)

at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)

at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)

at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)

Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Sequence "HELLO_SEQ" not found; SQL statement:

select next value for hello_seq [90036-214]

at org.h2.message.DbException.getJdbcSQLException(DbException.java:632)

at org.h2.message.DbException.getJdbcSQLException(DbException.java:477)

at org.h2.message.DbException.get(DbException.java:223)

at org.h2.message.DbException.get(DbException.java:199)

at org.h2.command.Parser.readSequence(Parser.java:8471)

at org.h2.command.Parser.readTermWithIdentifier(Parser.java:5347)

at org.h2.command.Parser.readTermWithIdentifier(Parser.java:5217)

at org.h2.command.Parser.readTerm(Parser.java:4901)

at org.h2.command.Parser.readFactor(Parser.java:3398)

at org.h2.command.Parser.readSum(Parser.java:3385)

at org.h2.command.Parser.readConcat(Parser.java:3350)

at org.h2.command.Parser.readCondition(Parser.java:3132)

at org.h2.command.Parser.readExpression(Parser.java:3053)

at org.h2.command.Parser.parseSelectExpressions(Parser.java:2853)

at org.h2.command.Parser.parseSelect(Parser.java:2871)

at org.h2.command.Parser.parseQueryPrimary(Parser.java:2762)

at org.h2.command.Parser.parseQueryTerm(Parser.java:2633)

at org.h2.command.Parser.parseQueryExpressionBody(Parser.java:2612)

at org.h2.command.Parser.parseQueryExpressionBodyAndEndOfQuery(Parser.java:2605)

at org.h2.command.Parser.parseQueryExpression(Parser.java:2598)

at org.h2.command.Parser.parseQuery(Parser.java:2567)

at org.h2.command.Parser.parsePrepared(Parser.java:724)

at org.h2.command.Parser.parse(Parser.java:689)

at org.h2.command.Parser.parse(Parser.java:661)

at org.h2.command.Parser.prepareCommand(Parser.java:569)

at org.h2.engine.SessionLocal.prepareLocal(SessionLocal.java:631)

at org.h2.server.TcpServerThread.process(TcpServerThread.java:288)

at org.h2.server.TcpServerThread.run(TcpServerThread.java:191)

at java.base/java.lang.Thread.run(Thread.java:834)

at org.h2.message.DbException.getJdbcSQLException(DbException.java:632)

at org.h2.engine.SessionRemote.readException(SessionRemote.java:637)

at org.h2.engine.SessionRemote.done(SessionRemote.java:606)

at org.h2.command.CommandRemote.prepare(CommandRemote.java:78)

at org.h2.command.CommandRemote.<init>(CommandRemote.java:50)

at org.h2.engine.SessionRemote.prepareCommand(SessionRemote.java:480)

at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1116)

at org.h2.jdbc.JdbcPreparedStatement.<init>(JdbcPreparedStatement.java:92)

at org.h2.jdbc.JdbcConnection.prepareStatement(JdbcConnection.java:288)

at com.zaxxer.hikari.pool.ProxyConnection.prepareStatement(ProxyConnection.java:327)

at com.zaxxer.hikari.pool.HikariProxyConnection.prepareStatement(HikariProxyConnection.java)

at com.p6spy.engine.wrapper.ConnectionWrapper.prepareStatement(ConnectionWrapper.java:118)

at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$1.doPrepare(StatementPreparerImpl.java:91)

at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:177)

... 90 more

에러가 납니다.

QuerydlsApplicationTests.java는 이렇습니다.

ackage study.querydsl;

import com.querydsl.jpa.impl.JPAQueryFactory;

import jakarta.persistence.EntityManager;
import jakarta.transaction.Transactional;
import org.assertj.core.api.Assertions;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import study.querydsl.entity.Hello;
import study.querydsl.entity.QHello;

import static org.assertj.core.api.Assertions.*;

@SpringBootTest
@Transactional
class QuerydslApplicationTests {

@Autowired
EntityManager em;
@Test
void contextLoads() {
Hello hello = new Hello();
em.persist(hello);

JPAQueryFactory query = new JPAQueryFactory(em);
QHello qHello = new QHello("h");

Hello result = query.selectFrom(qHello)
.fetchOne();

assertThat(result).isEqualTo(hello);
assertThat(result.getId()).isEqualTo(hello.getId());
}

}

hello.java 입니다

package study.querydsl.entity;

import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.Id;
import lombok.Getter;
import lombok.Setter;
@Entity
@Getter @Setter
public class Hello {

@Id
@GeneratedValue
private Long id;

}

어떻게 해야 하나요?