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Hi, I have a problem. My PS 1.5.2 refuses to execute valid SQL statement. I don't know why. The code is: Db::getInstance()->execute('INSERT INTO `'._DB_PREFIX_.'slider` (`id_slider_image`,`name`, `position`) VALUES (NULL,"'.$name.'", '.$position.')'); which leads to result INSERT INTO `ps_slider` (`id_slider_image`,`name`, `position`) VALUES (NULL,"Filter_bg.png", 1) which is absolutely correct. If I take this result and copy it to the phpmyadmin SQL console, it works. So could anybody please tell me, where could be the problem? I found out, that even a pure php functions isn't working too. But selecting is ok. Could be some permission problem? It's my own plugin. But if I can do select sqls why not the insert ones? If I do this: $sql = "INSERT INTO `"._DB_PREFIX_."slider` (`id_slider_image`,`name`, `position`) VALUES (NULL,'".$name."', ".$position.")"; $result = mysql_query($con,$sql) or die("Bad query: " . mysql_error()); it exists with this: Bad query: Where could be problem? Thanks