Hibernate error - QuerySyntaxException: users is not mapped [from users]

Question

I\'m trying to get a list of all the users from \"users\" table and I get the following error:

org.hibernate.hql.internal.ast.QuerySyntaxException: users is          


        

Answer 1

I got this issue when i replaced old hibernate-core library with hibernate-core-5.2.12. However all my configuration was ok. And i fixed this issue by creating sessionfactory this way:

private static SessionFactory buildsSessionFactory() {
    try {
        if (sessionFactory == null) {
            StandardServiceRegistry standardRegistry = new StandardServiceRegistryBuilder()
                    .configure("/hibernate.cfg.xml").build();
            Metadata metaData = new MetadataSources(standardRegistry)
                    .getMetadataBuilder().build();
            sessionFactory = metaData.getSessionFactoryBuilder().build();
        }
        return sessionFactory;
    } catch (Throwable th) {

        System.err.println("Enitial SessionFactory creation failed" + th);

        throw new ExceptionInInitializerError(th);

    }
}

Hope it helps someone

Answer 2

In your Query you have to use class name(User) not table name(users) so your query is "from User"

Answer 3

You must type in the same name in your select query as your entity or class(case sensitive) . i.e. select user from className/Entity Name user;

Answer 4

I also came across this issue while using the Quarkus microservice framework:

public class SomeResource {

  @GET
  @RolesAllowed({"basic"})
  public Response doSomething(@Context SecurityContext context) {
    // ...
  }
}

// this will generate an QuerySyntax exception, as the authorization module
// will ignore the Entity annotation and use the class name instead.
@Entity(name = "users")
@UserDefinition
public class User {
  // ...
}

// do this instead
@Entity
@Table(name = "users")
@UserDefinition
public class User {
  // ...
}

Answer 5

I recommend this pattern:

@Entity(name = User.PERSISTANCE_NAME)
@Table(name = User.PERSISTANCE_NAME )
public class User {    
    static final String PERSISTANCE_NAME = "USER";

    // Column definitions here

}

Answer 6

with org.hibernate.hql.internal.ast.QuerySyntaxException: users is not mapped [from users], you are trying to select from the users table. But you are annotating your class with @Table( name = "Users" ). So either use users, or Users.