Notice: Undefined index: id in /home/zaisa/public_html/empresas/ficha.php on line 19

Fatal error: mysql error: [1064: 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 '' at line 1] in EXECUTE("SELECT empresas.* FROM empresas WHERE id =;") in /home/zaisa/public_html/php/base/adodb/ on line 77