如何解决“Caused by: org.postgresql.util.PSQLException: ERROR: relation “employee” does not exist Position: 13”错误？

Question

I have tried to execute the Hibernate Demo application. I'm getting the below error message.

Database: PostgreSQL Hibernate Version: 5

Source code for Bean class package com.javatpoint;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;


@Entity
public class Employee {
@Id
private int id;
private String firstName,lastName;

public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}


}

Test class package com.javatpoint;

import org.hibernate.*;
import org.hibernate.cfg.*;

public class Test {
public static void main(String[] args) {

Configuration cfg=new Configuration();
cfg.configure("/hibernate.cfg.xml");
SessionFactory sf=cfg.buildSessionFactory();
Session session=sf.openSession();
Transaction t=session.beginTransaction();

Employee e1=new Employee();
e1.setId(1001);
e1.setFirstName("sonoo");
e1.setLastName("jaiswal");

Employee e2=new Employee();
e2.setId(1002);
e2.setFirstName("vimal");
e2.setLastName("jaiswal");

session.persist(e1);
session.persist(e2);

t.commit();
session.close();
System.out.println("successfully saved");
}
}

hibernate.cfg.xml

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
      "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
      "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<!-- Generated by MyEclipse Hibernate Tools.                   -->
<hibernate-configuration>

<session-factory>
    <property name="hbm2ddl.auto">create</property>
    <property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property>
    <property name="connection.url">jdbc:postgresql://localhost:5555/postgres</property>
    <property name="connection.username">postgres</property>
    <property name="connection.password">password</property>
    <property name="connection.driver_class">org.postgresql.Driver</property>

    <mapping class="com.javatpoint.Employee"/>
</session-factory>

Error Message

Jun 18, 2016 12:06:34 AM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.2.0.Final}
Jun 18, 2016 12:06:34 AM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Jun 18, 2016 12:06:34 AM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
Jun 18, 2016 12:06:34 AM org.hibernate.boot.jaxb.internal.stax.LocalXmlResourceResolver resolveEntity
WARN: HHH90000012: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/hibernate-configuration. Use namespace http://www.hibernate.org/dtd/hibernate-configuration instead.  Support for obsolete DTD/XSD namespaces may be removed at any time.
Jun 18, 2016 12:06:35 AM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [org.postgresql.Driver] at URL [jdbc:postgresql://localhost:5555/postgres]
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {user=postgres, password=****}
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.connections.internal.PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
Jun 18, 2016 12:06:35 AM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
Jun 18, 2016 12:06:35 AM org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl useContextualLobCreation
INFO: HHH000424: Disabling contextual LOB creation as createClob() method threw error : java.lang.reflect.InvocationTargetException
Jun 18, 2016 12:06:35 AM org.hibernate.type.BasicTypeRegistry register
INFO: HHH000270: Type registration [java.util.UUID] overrides previous : org.hibernate.type.UUIDBinaryType@236e3f4e
Jun 18, 2016 12:06:36 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper$StandardWarningHandler logWarning
WARN: SQL Warning Code: 0, SQLState: 00000
Jun 18, 2016 12:06:36 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper$StandardWarningHandler logWarning
WARN: schema "hibernatedemo" does not exist, skipping
Jun 18, 2016 12:06:36 AM org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl handleException
WARN: GenerationTarget encountered exception accepting command : Unable to execute command [create table HibernateDemo.Employee (id int4 not null, firstName varchar(255), lastName varchar(255), primary key (id))]
org.hibernate.tool.schema.spi.CommandAcceptanceException: Unable to execute command [create table HibernateDemo.Employee (id int4 not null, firstName varchar(255), lastName varchar(255), primary key (id))]
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:63)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:434)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:419)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:310)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:165)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:134)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:120)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:148)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:65)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:308)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:476)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:707)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:723)
at com.javatpoint.Test.main(Test.java:11)
Caused by: org.postgresql.util.PSQLException: ERROR: schema "hibernatedemo" does not exist
Position: 14
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2284)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2003)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:200)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:424)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:321)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:313)
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:51)
... 13 more

Jun 18, 2016 12:06:36 AM org.hibernate.tool.schema.internal.SchemaCreatorImpl applyImportSources
INFO: HHH000476: Executing import script 'org.hibernate.tool.schema.internal.exec.ScriptSourceInputNonExistentImpl@13f17eb4'
Jun 18, 2016 12:06:36 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 0, SQLState: 42P01
Jun 18, 2016 12:06:36 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: ERROR: relation "hibernatedemo.employee" does not exist
Position: 13
Jun 18, 2016 12:06:36 AM org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl release
INFO: HHH000010: On release of batch it still contained JDBC statements
Jun 18, 2016 12:06:36 AM org.hibernate.internal.ExceptionMapperStandardImpl mapManagedFlushFailure
ERROR: HHH000346: Error during managed flush [org.hibernate.exception.SQLGrammarException: could not execute statement]
Exception in thread "main" javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute statement
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:147)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:155)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:162)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1402)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:472)
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3132)
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2369)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:467)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:147)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:221)
at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:68)
at com.javatpoint.Test.main(Test.java:28)
Caused by: org.hibernate.exception.SQLGrammarException: could not execute statement
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:106)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:207)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:45)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2934)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3434)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:560)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:434)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:337)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1396)
... 9 more
Caused by: org.postgresql.util.PSQLException: ERROR: relation "hibernatedemo.employee" does not exist
Position: 13
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2284)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2003)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:200)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:424)
at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:161)
at org.postgresql.jdbc.PgPreparedStatement.executeUpdate(PgPreparedStatement.java:133)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:204)
... 18 more

Eclipse Project

PostgreSQL Database

Answer 1

Hibernate is trying to create entity in hibernatedemo schema. You need to create that schema in database. I did not see your configuration that is pointing to hibernatedemo schema. The cfg.xml is generated by MyEclipse Hibernate tools. Check that configuratioon.

How to create schema in PostGreSQL Link

CREATE SCHEMA IF NOT EXISTS schema_name

After creating schema try again to start your application

Answer 2

You can simply add that tag to your config xml file

  <property name="hibernate.hbm2ddl.auto">update</property>