SELECT id FROM `#__cck_store_form_categ` WHERE `cat_kat` = '6' AND ( `cat_pkat` = '21' OR `cat_pkat` = '' ) AND ( `cat_par0` = '' OR `cat_par0` IS NULL OR `cat_par0` = 'Монтажная планка' ) AND ( `cat_par3` = '' OR `cat_par3` IS NULL OR `cat_par3` = 'Металл' ) AND ( `cat_strana` = '' OR `cat_strana` IS NULL OR `cat_strana` = 'Италия' ) AND ( `cat_brand` = '' OR `cat_brand` IS NULL OR `cat_brand` = 'Salice' ) AND ((`cat_pkat` IS NOT NULL AND `cat_pkat` <> '') OR (`cat_par0` IS NOT NULL AND `cat_par0` <> '') OR (`cat_par3` IS NOT NULL AND `cat_par3` <> '') OR (`cat_strana` IS NOT NULL AND `cat_strana` <> '') OR (`cat_brand` IS NOT NULL AND `cat_brand` <> ''))