Question

我有一个sql查询已经在托管上工作得很好，但在WAMP上我没有得到SQL错误1064，请帮忙。
谢谢！

$query = 'SELECT p.products_id, p.products_image, p.products_tax_class_id, p.products_ordered, IF (s.status, s.specials_new_products_price, NULL) AS specials_new_products_price, p.products_price, pd.products_name, p.products_model';


    if ( defined('FEATURED_MODUL_SPECIALS_ONLY') AND FEATURED_MODUL_SPECIALS_ONLY == 'true' ) {
            $query .= 'FROM ' . TABLE_SPECIALS . ' s LEFT JOIN ' . TABLE_PRODUCTS . ' p ON s.products_id = p.products_id ';
    } else {
            $query .= 'FROM ' . TABLE_PRODUCTS . ' p LEFT JOIN ' . TABLE_SPECIALS . ' s ON p.products_id = s.products_id ';
    }
    if ($current_page != FILENAME_DEFAULT)  { 
        $query .= 'LEFT JOIN ' . TABLE_PRODUCTS_DESCRIPTION . " pd ON p.products_id = pd.products_id AND pd.language_id = '" . $languages_id . "'
        LEFT JOIN " . TABLE_FEATURED . " f ON p.products_id = f.products_id
        WHERE p.products_status = '1' AND f.status = '1' order by rand($mtm) DESC limit " . FEATURED_MODUL_MAX_DISPLAY;
    }else{
        $query .= 'LEFT JOIN ' . TABLE_PRODUCTS_DESCRIPTION . " pd ON p.products_id = pd.products_id AND pd.language_id = '" . $languages_id . "'
        LEFT JOIN " . TABLE_FEATURED . " f ON p.products_id = f.products_id
        WHERE p.products_status = '1' AND f.status = '1' order by rand($mtm) DESC limit " . FEATURED_MODUL_MAX_DISPLAY_FIRST_PAGE;
    }

我在WAMP服务器上出错了：
1064 - 您的SQL语法出错;查看与您的MySQL服务器版本对应的手册，以便在'p LEFT JOIN specials s on p.products_id = s.products_id LEFT JOIN products_descr'第1行附近使用正确的语法

SELECT p.products_id，p.products_image，p.products_tax_class_id，p.products_ordered，IF（s.status，s.specials_new_products_price，NULL）AS specials_new_products_price，p.products_price，pd.products_name，p.products_modelFROM products p LEFT JOIN特价s ON p.products_id = s.products_id LEFT JOIN products_description pd ON p.products_id = pd.products_id AND pd.language_id ='1'LEFT JOIN feature f ON p.products_id = f.products_id WHERE p.products_status ='1' AND f.status ='1'由rand（12852）DESC限制12

[TEP STOP]

Answer 1

我不知道查询是如何工作的。第一个字符串是：

'SELECT p.products_id, p.products_image, p.products_tax_class_id, p.products_ordered, IF (s.status, s.specials_new_products_price, NULL) AS specials_new_products_price, p.products_price, pd.products_name, p.products_model'

然后第二个是：

'FROM ' . TABLE_SPECIALS . ' s LEFT JOIN ' . TABLE_PRODUCTS . ' p ON s.products_id = p.products_id '

或

'FROM ' . TABLE_PRODUCTS . ' p LEFT JOIN ' . TABLE_SPECIALS . ' s ON p.products_id = s.products_id '

在这两个中，select列表如下所示：

'p.process_modelFROM '

我怀疑这是表中的一列。我怀疑该查询也缺少from子句。

将空格放回select行的末尾，查询应该有效。

在编译器的第一次传递期间，您将遇到特定错误。它找到关键字left join，但它们不在from子句中。

一个sql查询已经在托管上运行良好，但在WAMP上无法正常工作

1 个答案: