Wystapil blad ["select max(cena_proponowana) as maxcena from transakcje where stan>0 and produkty_id= group by produkty_id"] [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'group by produkty_id' at line 1] Wystapil blad ["select distinct parametry_id, wartosc from parametry_wartosci where obiekty_id= and lang_id="1" "] [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'and lang_id="1"' at line 1]