Špatný dotaz: Unknown column 'informace' in 'where clause'
SELECT id,nazev,poradi,text,zkracene,url,id_kategorie,kod,datum,datum_zobrazovat FROM prispevek WHERE zobrazovat="A" AND (id_kategorie in(informace-pro-neprijate-v-i-kole-prijimaciho-rizeni) or exists(select * from prispevek_kategorie pk where pk.id_prispevek = prispevek.id and pk.id_kategorie in (informace-pro-neprijate-v-i-kole-prijimaciho-rizeni))) order by datum DESC ,id DESC