mysql - sql 查询显示错误接近排序依据

Question

 $products_options_query = tep_db_query("select pov.products_options_values_id, pov.products_options_values_name, pa.options_values_price, pa.price_prefix from " . TABLE_PRODUCTS_ATTRIBUTES . " pa, " . TABLE_PRODUCTS_OPTIONS_VALUES . " pov where pa.products_id = '" . (int)$HTTP_GET_VARS['products_id'] . "' and pa.options_id = '" . (int)$products_options_name['products_options_id'] . "' and pa.options_values_id = pov.products_options_values_id and pov.language_id = '" . (int)$languages_id . "'group by pov.products_options_values_name, order by pov.products_options_values_id desc");

这里的代码显示错误为 1064 - 您的 SQL 语法有误；查看与您的 MySQL 服务器版本对应的手册，了解在第 1 行的“order by pov.products_options_values_id desc”附近使用的正确语法

Answer 1

删除 products_options_values_name 后的逗号。您的查询应如下所示

$products_options_query = tep_db_query("select pov.products_options_values_id, pov.products_options_values_name, pa.options_values_price, pa.price_prefix from " . TABLE_PRODUCTS_ATTRIBUTES . " pa, " . TABLE_PRODUCTS_OPTIONS_VALUES . " pov where pa.products_id = '" . (int)$HTTP_GET_VARS['products_id'] . "' and pa.options_id = '" . (int)$products_options_name['products_options_id'] . "' and pa.options_values_id = pov.products_options_values_id and pov.language_id = '" . (int)$languages_id . "' group by pov.products_options_values_name order by pov.products_options_values_id desc");