lazaropj

create table livros (
id integer primary key auto_increment not null,
nome varchar(100) not null,
data_de_lancamento date not null,
autor_id integer not null,
preco decimal(10,2) not null
);
create table autores (
id integer primary key auto_increment not null,
nome varchar(100) not null

lazaropj

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface EsId {

}