Joining Multiple table in Hibernate

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Raul Estrela

Joining Multiple table in Hibernate
1 Answer(s) a year and a month ago
Posted in : Hibernate

Hi everyone,

I'm new to Hibernate (even in JAVA), and I'm having some doubt's about one thing. I created 2 tables in PostgreSQL with 1 to many relationship, and now i'm trying to test some queries to them. Tables names are TbPessoa (one) and TbTelefone(many).

TbPessoa - idPessoa(pk), usNome(charvar), usIdade(int), usTelefone(int)

TbTelefone - idTelefone(pk), usIOperadora(charvar), usTarifario(charvar), usData(date), idPessoa(int)

Foreign Key on TbTelefone referencing TbPessoa (idPessoa to idPessoa on TbPessoa).

I'm trying to create a query where I would get the items where usNome='Peter' OR usOperadora='Vodafone' like we can do with SQL statments like,

SELECT usNome, usOperadora
FROM TbPessoa, TbTelefone
WHERE usNome='Peter' OR usOperadora='Vodafone'***

Finnaly, I need to know how a can print (using System.out.println) the query results. I've been using (just for one table) this:

transaction = session.beginTransaction();
@SuppressWarnings("unchecked")
String query = "SELECT FROM TbPessoa";

List <TbPessoa> lista = session.createQuery(query).list();

int i=0;

for( TbPessoa x : lista ) {

System.out.println( "Id: " + x.getIdPessoa() + "| Nome: " + x.getUsNome() + "| Idade:" + x.getUsIdade() + "| Morada: " + x.getUsMorada() + "| Nr. Telefone: " + x.getUsTelefone());

}

Sorry my bad English! Thanks!

Kind Regards, Raul

View Answers

April 3, 2012 at 10:55 AM

Please visit the following links:

http://www.roseindia.net/hibernate/associations-and-joins.shtml

http://www.roseindia.net/hibernate/hibernate-aggregate-functions.shtml

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