SQL/DB Hiba -- [You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'AND t.termek_id=rel.termek_id' at line 1]
[SELECT t.nev, t.url, rel.category_id FROM termek_data t, termek_category_rel rel WHERE t.termek_id= AND t.termek_id=rel.termek_id]