如何在ResultSet JayBird中获取String（Table.Column）

Question

I need to use the database Firebird and for this I use the Jaybird 2.2.9.

When I used the MySQL driver, to converter of ResultSet to Object this way:

empresa.setBairro(rs.getString("empresa.bairro")); // (Table.Column)
empresa.setCep(rs.getString("empresa.cep")); // (Table.Column)
empresa.setCidade(rs.getString("empresa.cidade")); // (Table.Column)

But with Jaybird the resultSet don't return rs.getString("Table.Column")

I need this way when I have inner join in SQL .

Anyone help me?

This is my full code

public ContaLivros converterContaLivros(ResultSet rs, Integer linha) throws Exception {
    if (rs.first()) {

        rs.absolute(linha);

        ContaLivros obj = new ContaLivros();

        obj.setId(rs.getLong("cad_conta.auto_id"));
        obj.setNome(rs.getString("cad_conta.nome"));


        if (contain("cad_banco.auto_id", rs)) {

            obj.setBancoLivros(converterBancoLivros(rs, linha));
        } else {

            obj.setBancoLivros(new BancoLivros(rs.getLong("cad_conta.banco"), null, null, null));
        }
        obj.setAgencia(rs.getInt("cad_conta.agencia"));
        obj.setAgenciaDigito(rs.getInt("cad_conta.agencia_digito"));
        obj.setConta(rs.getInt("cad_conta.conta"));
        obj.setContaDigito(rs.getInt("cad_conta.conta_digito"));
        obj.setLimite(rs.getDouble("cad_conta.limite"));
        obj.setAtivo(rs.getString("cad_conta.ativo"));

        return obj;
    } else {
        return null;
    }
}

Answer 1

The name in jdbc will not have the table in it.

You can either

• work with positional parameters ( getString (1); and so on )

Or

• define column name alias in your select ( select a.name namefroma from tableone a )

Or

• simply do rs.getString ("column"); without the table prefix if name is unambigous

Answer 2

You can't. Jaybird retrieves the columns by its label as specified in JDBC 4.2, section 15.2.3. In Firebird the column label is either the original column name, or the AS alias, the table name isn't part of this. The extension of MySQL that you can prefix the table name for disambiguation is non-standard.

Your options are to specify aliases in the query and retrieve by this aliasname, or to process the result set metadata to find the right indexes for each column and retrieve by index instead.

However note that in certain queries (for example UNION ), the ResultSetMetaData.getTableName cannot return the table name, as Firebird doesn't "know" it (as you could be applying a UNION to selects from different tables).