Good morning. I have an XML file of the following format: <?xml version="1.0" encoding="UTF-8"?> <resultsets> <resultset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <row> <column name="TITULO">A Adequação de Sistemas Baseados em Casos no Sequenciamento Inteligente de Ações</column> <column name="NOMECOMPLETO">José Pacheco de Almeida Prado</column> </row> <row> <column name="TITULO">Sistemas Distribuídos Inteligentes</column> <column name="NOMECOMPLETO">José Pacheco de Almeida Prado</column> </row> <row> <column name="TITULO">Uma Arquitetura para Planejamento Inteligente</column> <column name="NOMECOMPLETO">José Pacheco de Almeida Prado</column> </row> <row> <column name="TITULO">Navegação de robôs móveis com Lógica Paracpmsistente Anotada e método de Campos Potenciais</column> <column name="NOMECOMPLETO">José Pacheco de Almeida Prado</column> </row> <row> <column name="TITULO">Adaptation in a Traffic Control System</column> <column name="NOMECOMPLETO">José Pacheco de Almeida Prado</column> </row> ... The file contains titles for articles and their authors.. I was asked to develop a query that returns the author's name followed by the titles of all of its articles, so the result would be something like this: <Author1>:<Article1>, <Article2>, <Article3>... <Author2>:<Article1>, <Article2>... ... Any ideas on how can I do it? Thank you in advance.