public static string SELECT_BY_CONVOCATORIA(long oid_convocatoria)
{
QueryConditions conditions = new QueryConditions()
{
Convocatoria_Curso = Convocatoria_CursoInfo.New()
};
conditions.Convocatoria_Curso.Oid = oid_convocatoria;
return(AlumnoCurso.SELECT(conditions, true));
}