+ pqxx::work t(conn, "trx");
+
+ // fetch all songs
+ pqxx::result res( t.exec("SELECT * FROM songs") );
+ for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
+ std::fprintf(stderr, "%s\n", i["title"].c_str());
+ }
+ t.commit();